C语言入门130题-OJ
C语言入门130题-OJ
- BC1 实践出真知
- BC2 我是大V
- BC3 有容乃大
- BC6 小飞机
- BC7 缩短二进制
- BC8 十六进制转十进制
- BC9 printf的返回值
- BC10 成绩输入输出
- BC11 学生基本信息输入输出
- BC12 字符圣诞树
- BC13 ASCII码
- BC14 出生日期输入输出
- BC15 按照格式输入并交换输出
- BC16 字符转ASCII码
- BC17 计算表达式的值
- BC18 计算带余除法
- BC19 反向输出一个四位数
- BC20 kiki算数
- BC21 浮点数的个位数字
- BC22 你能活多少秒
- BC23 时间转换
- BC24 总成绩和平均分计算
- BC25 计算体重指数
- BC26 计算三角形的周长和面积
- BC27 计算球体的体积
- BC28 大小写转换
- BC29 2的n次方计算
- BC30 KiKi和酸奶
- BC31 发布信息
- BC32 输出学生信息
- BC33 计算平均成绩
- BC34 进制A+B
- BC35 判断字母
- BC36 健康评估
- BC37 网购
- BC38 变种水仙花
- BC39 争夺前五名
- BC40 竞选社长
- BC41 你是天才吗?
- BC42 完美成绩
- BC43 及格分数
- BC44 判断整数奇偶性
- BC45 最高分数
- BC46 判断是元音还是辅音
- BC47 判断是不是字母
- BC48 字母大小写转换
- BC49 判断两个数的大小关系
- BC50 计算单位阶跃函数
- BC51 三角形判断
- BC52 衡量人体胖瘦程度
- BC53 计算一元二次方程
- BC54 获得月份天数
- BC55 简单计算器
- BC56 线段图案
- BC57 正方形图案
- BC58 直角三角形图案
- BC59 翻转直角三角形图案
- BC60 带空格直角三角形图案
- BC61 金字塔图案
- BC62 翻转金字塔图案
- BC63 菱形图案
- BC64 K形图案
- BC65 箭形图案
- BC66 反斜线形图案
- BC67 正斜线形图案
- BC68 X形图案
- BC69 空心正方形图案
- BC70 空心三角形图案
- BC71 新年快乐
- BC72 平均身高
- BC73 挂科危险
- BC74 HTTP状态码
- BC75 数字三角形
- BC76 公务员面试
- BC77 有序序列插入一个数
- BC78 筛选法求素数
- BC79 图像相似度
- BC80 登录验证
- BC81 学好C++
- BC82 (a+b-c)*d的计算问题
- BC83 被5整除问题
- BC84 计算y的值
- BC85 包含数字9的数
- BC86 奇偶统计
- BC87 统计成绩
- BC88 有序序列插入一个数
- BC89 密码验证
- BC90 矩阵计算
- BC91 成绩输入输出问题
- BC92 逆序输出
- BC93 统计数据正负个数
- BC94 N个数之和
- BC95 最高分与最低分之差
- BC96 有序序列判断
- BC97 有序序列插入一个整数
- BC98 序列中删除指定数字
- BC99 序列中整数去重
- BC100 有序序列合并
- BC101 班级成绩输入输出
- BC102 矩阵元素定位
- BC103 序列重组矩阵
- BC104 最高身高
- BC105 矩阵相等判定
- BC106 上三角矩阵判定
- BC107 矩阵转置
- BC108 矩阵交换
- BC109 杨辉三角
- BC110 井字棋
- BC111 小乐乐与进制转换
- BC112 小乐乐求和
- BC113 小乐乐定闹钟
- BC114 小乐乐排电梯
- BC115 小乐乐与欧几里得
- BC116 小乐乐改数字
- BC117 小乐乐走台阶
- BC118 小乐乐与序列
- BC119 小乐乐与字符串
- BC121 小乐乐学编程
- BC122 小乐乐算平均分
- BC123 小乐乐找最大数
- BC124 小乐乐是否被叫家长
- BC125 小乐乐转换成绩
- BC126 小乐乐算多少人被请家长
- BC127 小乐乐算最高分
- BC128 小乐乐计算求和
- BC129 小乐乐计算函数
- BC130 小乐乐查找数字
- BC131 KiKi学程序设计基础
- BC132 KiKi算期末成绩
- BC133 KiKi说祝福语
- BC134 KiKi的最高分
- BC135 KiKi求质数个数
- BC136 KiKi去重整数并排序
- BC137 KiKi判断上三角矩阵
- BC138 KiKi学结构体和指针
- BC139 KiKi定义电子日历类
- BC140 KiKi设计类继承
BC1 实践出真知
#include <stdio.h>
int main()
{printf("Practice makes perfect!\n");return 0;
}
BC2 我是大V
#include <stdio.h>
int main()
{printf("v v\n v v \n v \n");return 0;
}
BC3 有容乃大
#include <stdio.h>
int main()
{printf("The size of short is %d bytes.\n", sizeof(short));printf("The size of int is %d bytes.\n", sizeof(int));printf("The size of long is %d bytes.\n", sizeof(long));printf("The size of long long is %d bytes.\n", sizeof(long long));
}
BC6 小飞机
#include <stdio.h>
int main()
{printf(" ** \n");printf(" ** \n");printf("************\n");printf("************\n");printf(" * * \n");printf(" * * \n");return 0;
}
BC7 缩短二进制
#include <stdio.h>
int main()
{// printf("0%o 0X%X", 1234, 1234);printf("%#o %#X", 1234, 1234);return 0;
}
BC8 十六进制转十进制
#include <stdio.h>
int main()
{int n = 0XABCDEF;printf("%15d", n);return 0;
}
BC9 printf的返回值
#include <stdio.h>
int main()
{int a = printf("Hello world!");printf("\n%d", a);return 0;
}
BC10 成绩输入输出
#include <stdio.h>
int main()
{int score1 = 0;int score2 = 0;int score3 = 0;scanf("%d %d %d", &score1, &score2, &score3);printf("score1=%d,score2=%d,score3=%d", score1, score2, score3);return 0;
}
BC11 学生基本信息输入输出
#include <stdio.h>
int main()
{long a;float C, M, E;scanf("%ld;%f,%f,%f", &a, &C, &M, &E);printf("The each subject score of No. %ld is %.2f, %.2f, %.2f.", a, C, M, E);return 0;
}
BC12 字符圣诞树
#include<stdio.h>
int main()
{char a;scanf("%c", &a);//输入一个任意字符for(int i = 1; i <= 5; i++){for(int j = 0; j < 5-i; j++){printf(" ");}for(int j = 0; j < i; j++){printf("%c ", a);}printf("\n");}return 0;
}
BC13 ASCII码
#include <stdio.h>
int main()
{int arr[] = {73, 32, 99, 97, 110, 32, 100, 111, 32, 105, 116 , 33};int size = sizeof(arr) / sizeof(arr[0]);for(int i = 0; i < size; i++){printf("%c", arr[i]);}return 0;
}
BC14 出生日期输入输出
#include <stdio.h>
int main()
{int year;int month;int day;scanf("%4d%2d%2d", &year, &month, &day);printf("year=%d\nmonth=%02d\ndate=%02d\n", year, month, day);return 0;
}
BC15 按照格式输入并交换输出
#include <stdio.h>
void JH(int *a, int *b);
int main()
{int a;int b;scanf("a=%d,b=%d", &a, &b);JH(&a, &b);printf("a=%d,b=%d", a, b);}
void JH(int *a, int *b)
{int c = *a;*a = *b;*b = c;
}
BC16 字符转ASCII码
#include <stdio.h>
int main()
{char ch;while((ch = getchar()) != EOF){getchar();printf("%d\n", ch);}return 0;
}
BC17 计算表达式的值
#include <stdio.h>
int main()
{int a = 40;int c = 212;int num = (-8 + 22) * a - 10 + c / 2;printf("%d", num);
}
BC18 计算带余除法
#include <stdio.h>
int main()
{int a;int b;scanf("%d %d", &a, &b);printf("%d %d", a / b, a % b);return 0;
}
BC19 反向输出一个四位数
#include <stdio.h>
int main()
{int a;scanf("%d", &a);while(a > 0){int b = a % 10;printf("%d", b);a = a / 10;}
}
BC20 kiki算数
#include <stdio.h>
int main()
{int a;int b;scanf("%d %d", &a, &b);int c = a + b;if(c >= 100)c %= 100;printf("%d", c);return 0;
}
BC21 浮点数的个位数字
#include <stdio.h>
int main()
{float a;scanf("%f", &a);int b = (int)a;printf("%d", b %= 10);return 0;
}
BC22 你能活多少秒
#include <stdio.h>
int main()
{int age = 0;scanf("%d", &age);printf("%.0lf\n", age * 31560000.0);return 0;
}
BC23 时间转换
#include <stdio.h>
int main()
{int seconds = 0;int hour = 0, minute = 0, sec = 0;scanf("%d", &seconds);hour = seconds / 3600;minute = (seconds % 3600) / 60;sec = (seconds % 3600) % 60;printf("%d %d %d", hour, minute, sec);
}
BC24 总成绩和平均分计算
#include <stdio.h>
int main()
{double a[3] = {0};double sum = 0, ave = 0;scanf("%lf %lf %lf", &a[0], &a[1], &a[2]);printf("%.2f %.2f", a[0]+a[1]+a[2], (a[0]+a[1]+a[2])/3.0);return 0;
}
BC25 计算体重指数
#include <stdio.h>
int main()
{int high = 0, weight = 0;scanf("%d %d", &weight, &high);printf("%.2f\n", weight / ((high / 100.0)*(high / 100.0)));return 0;
}
BC26 计算三角形的周长和面积
#include<stdio.h>
#include<math.h>
int main()
{int a, b, c;scanf("%d %d %d", &a, &b, &c);float d, e, p;d = a + b + c;p = d / 2;e = sqrt(p * (p-a) *(p-b) * (p-c));printf("circumference=%.2f area=%.2f", d, e);return 0;
}
BC27 计算球体的体积
#include <stdio.h>
#include <math.h>
int main()
{//半径double r = 0.0;//体积double v = 0.0;double pi = 3.1415926;//输入scanf("%lf", &r);//计算v = 4 / 3.0 * pi * pow(r,3);//输出printf("%.3lf\n", v);return 0;
}
BC28 大小写转换
#include <stdio.h>
int main()
{char ch;while((ch = getchar()) != EOF){getchar(); //将回车消除掉if(ch >= "a" && ch <= "z")printf("%c\n", (ch - 32));elseprintf("%c\n", (ch + 32));}return 0;
}
BC29 2的n次方计算
#include <stdio.h>
int main()
{int a;int sum = 1;scanf("%d", &a);for(int i = 0; i < a; i++){sum = sum << 1;}printf("%d", sum);return 0;
}
BC30 KiKi和酸奶
#include <stdio.h>
int main()
{int n;int h;int m;scanf("%d %d %d", &n, &h, &m);int w = (n * h - m) / h;printf("%d", w);return 0;
}
BC31 发布信息
#include <stdio.h>
int main()
{printf("I lost my cellphone!");return 0;
}
BC32 输出学生信息
#include <stdio.h>
int main()
{printf("Name Age Gender\n");printf("---------------------\n");printf("Jack 18 man \n");return 0;
}
BC33 计算平均成绩
#include <stdio.h>
int main()
{int stu1, stu2, stu3, stu4, stu5;scanf("%d %d %d %d %d", &stu1, &stu2, &stu3, &stu4, &stu5);float stu_avg = (stu1 + stu2 +stu3 + stu4 + stu5) / 5.0;printf("%.1f", stu_avg);return 0;
}
BC34 进制A+B
#include <stdio.h>
int main()
{int a, b;scanf("%x %o", &a, &b);printf("%d", (a + b));return 0;
}
BC35 判断字母
#include <stdio.h>
int main()
{char ch;scanf("%c", &ch);if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))printf("YES");elseprintf("NO");return 0;
}
BC36 健康评估
#include <stdio.h>
int main()
{double Hight;double Weight;double BMI;scanf("%lf %lf", &Weight, &Hight);BMI = Weight / (Hight*Hight);if(BMI >= 18.5 && BMI <= 23.9)printf("Normal\n");elseprintf("Abnormal\n");return 0;
}
BC37 网购
#include <stdio.h>typedef struct Yh
{float price;int month;int day;int flag;
}YH;int main()
{YH XM = {0};scanf("%f %d %d %d", &XM.price, &XM.month, &XM.day, &XM.flag);if(XM.month == 11 && XM.day == 11)XM.price = XM.price * 0.7;else if(XM.month == 12 && XM.day == 12)XM.price = XM.price * 0.8;if(XM.flag == 1)XM.price = XM.price - 50;if(XM.price <= 0)XM.price = 0;printf("%.2f", XM.price);return 0;
}
BC38 变种水仙花
#include <stdio.h>
int main()
{int a[4];int b[4];for(int i = 10000; i <= 99999; i++){a[0] = i / 10000;b[0] = i % 10000;a[1] = i / 1000;b[1] = i % 1000;a[2] = i / 100;b[2] = i % 100;a[3] = i / 10;b[3] = i % 10;if(i == a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3])printf("%d ", i);}return 0;
}
BC39 争夺前五名
#include <stdio.h>
int main()
{int n;int a[50] = {0};scanf("%d", &n);for(int i = 0; i < n; i++){scanf("%d", &a[i]);}for(int i = 0; i < 5; i++){for(int j = i+1; j< n; j++){if(a[j] > a[i]){int tmp = a[i];a[i] = a[j];a[j] = tmp;}}printf("%d ", a[i]);}
}
BC40 竞选社长
#include <stdio.h>
int main()
{char ch;int A = 0, B = 0, E = 0;while((ch = getchar()) != '0'){if(ch == 'A')A++;if(ch == 'B')B++;}if(A == B){printf("E\n");return 0;}int flag = A > B ? 0 : 1;if(flag == 0)printf("A\n");elseprintf("B\n");return 0;
}
BC41 你是天才吗?
#include <stdio.h>
int main()
{int Genius;while(scanf("%d", &Genius) != EOF){if(Genius >= 140)printf("Genius\n");}return 0;
}
BC42 完美成绩
#include <stdio.h>
int main()
{int score;while(scanf("%d", &score) != EOF){if(score >= 90 && score <= 100)printf("Perfect\n");}return 0;
}
BC43 及格分数
#include <stdio.h>
int main()
{int score;while(scanf("%d", &score) != EOF){if(score >= 60 && score <= 100)printf("Pass\n");elseprintf("Fail\n");}return 0;
}
BC44 判断整数奇偶性
#include <stdio.h>
int main()
{int n;while(scanf("%d", &n) != EOF){if(n % 2 == 0)printf("Even\n");elseprintf("Odd\n");}return 0;
}
BC45 最高分数
#include <stdio.h>
int main()
{int a[3] = {0};scanf("%d %d %d", &a[0], &a[1], &a[2]);int max = a[0];for(int i = 1; i <= 2; i++){if(a[i] > max)max = a[i];}printf("%d", max);return 0;
}
BC46 判断是元音还是辅音
#include <stdio.h>
int main()
{char a[10] = {'A', 'a', 'E', 'e', 'I', 'i', 'O', 'o', 'U', 'u'};char ch;int flag = 0;while(scanf("%c", &ch) != EOF){getchar();for(int i = 0; i < 10; i++){if(ch == a[i])flag = 1;}if(flag == 1){flag = 0;printf("Vowel\n");}elseprintf("Consonant\n");}
}
BC47 判断是不是字母
#include <stdio.h>
int main()
{char ch;while((ch = getchar()) != EOF){getchar();if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))printf("%c is an alphabet.\n", ch);elseprintf("%c is not an alphabet.\n", ch);}return 0;
}
BC48 字母大小写转换
#include <stdio.h>
int main()
{char ch;while((ch = getchar()) != EOF){getchar();if(ch >= 'a' && ch <= 'z')ch = ch - 32;else if(ch >= 'A' && ch <= 'Z')ch = ch + 32;printf("%c\n", ch);}return 0;
}
BC49 判断两个数的大小关系
#include <stdio.h>
int main()
{int a = 0, b = 0;while(scanf("%d %d", &a, &b) != EOF){if(a == b)printf("%d=%d\n", a, b);else if(a > b)printf("%d>%d\n", a, b);elseprintf("%d<%d\n", a, b);}return 0;
}
BC50 计算单位阶跃函数
#include <stdio.h>
int main()
{int num;while(scanf("%d", &num) != EOF){if(num > 0)printf("1\n");else if(num == 0)printf("0.5\n");elseprintf("0\n");}return 0;
}
BC51 三角形判断
#include <stdio.h>
int main()
{int a = 0, b = 0, c = 0;while(scanf("%d %d %d", &a, &b, &c) != EOF){if(a + b > c && b + c > a && c + a > b){if(a == b && b == c)printf("Equilateral triangle!\n");else if(a == b || b == c || c == a)printf("Isosceles triangle!\n");elseprintf("Ordinary triangle!\n");}elseprintf("Not a triangle!\n");}return 0;
}
BC52 衡量人体胖瘦程度
#include <stdio.h>
#include <math.h>
int main()
{int weight = 0, high = 0;while(scanf("%d %d", &weight, &high) != EOF){double BMI = weight / pow((double)high/100.0, 2.0);if(BMI < 18.5)printf("Underweight\n");else if(BMI >= 18.5 && BMI <= 23.9)printf("Normal\n");else if(BMI > 23.9 && BMI <= 27.9)printf("Overweight\n");elseprintf("Obese\n");}return 0;
}
BC53 计算一元二次方程
#include <stdio.h>
#include <math.h>
int main()
{float a = 0, b = 0, c = 0;float x1 = 0, x2 = 0;float s = 0, x = 0;while(scanf("%f %f %f", &a, &b, &c) != EOF){if(a == 0)printf("Not quadratic equation\n");else{double delat = pow(b, 2.0) - 4 * a * c;if(delat == 0){x1 = (-b + sqrt(delat)) / (2 * a);printf("x1=x2=%.2f\n", x1);}else if(delat > 0){x1 = (-b - sqrt(delat)) / (2 * a);x2 = (-b + sqrt(delat)) / (2 * a);printf("x1=%.2f;x2=%.2f\n", x1, x2);}else{s = -b / (2 * a);x = sqrt(-delat) / (2 * a);printf("x1=%.2f-%.2fi;x2=%.2f+%.2fi\n", s, x, s, x);}}}return 0;
}
BC54 获得月份天数
#include <stdio.h>
int main()
{int a[2][12] = {{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};int flag = 0;int year, month;while(scanf("%d %d", &year, &month) != EOF){flag = 0;if(((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0))flag = 1;printf("%d\n", a[flag][month - 1]);}return 0;
}
BC55 简单计算器
#include <stdio.h>
int main()
{double a, b;char ch;scanf("%lf%c%lf", &a, &ch, &b);switch(ch){case '+':printf("%.4f+%.4f=%.4f\n", a, b, (a+b));break;case '-':printf("%.4f-%.4f=%.4f\n", a, b, (a-b));break;case '*':printf("%.4f*%.4f=%.4f\n", a, b, (a*b));break;case '/':if(b == 0)printf("Wrong!Division by zero!\n");elseprintf("%.4f/%.4f=%.4f\n", a, b, (a/b));break;default:printf("Invalid operation!\n");break;}return 0;
}
BC56 线段图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){while(num--)printf("*");printf("\n");}return 0;
}
BC57 正方形图案
#include <stdio.h>
int main()
{int num = 0;while((scanf("%d", &num)) != EOF){int n = num;while(num--){for(int i = 0; i < n; i++){printf("* ");}printf("\n");}}return 0;
}
BC58 直角三角形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num; i++){int j = i;while(j--)printf("* ");printf("\n");}}return 0;
}
BC59 翻转直角三角形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num; i >= 1; i--){int j = i;while(j--)printf("* ");printf("\n");}}return 0;
}
BC60 带空格直角三角形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num - 1; i >= 0; i--){int j = i;while(j--)printf(" ");int n = num - i;while(n--)printf("* ");printf("\n");}}return 0;
}
BC61 金字塔图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num - 1; i >= 0; i--){int j = i;while(j--)printf(" ");int n = num - i;while(n--)printf("* ");printf("\n");}}return 0;
}
BC62 翻转金字塔图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num; i > 0; i--){for(int j = i; j < num; j++)printf(" ");int n = i;while(n--)printf("* ");printf("\n");}}return 0;
}
BC63 菱形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int p = 1; p <= num; p++){int mmp = num - p + 1;while(mmp--)printf(" ");int pp = p;while(pp--)printf("* ");printf("\n");}for(int i = num + 1 ; i > 0; i--){for(int j = i; j < num + 1; j++)printf(" ");int n = i;while(n--)printf("* ");printf("\n");}}return 0;
}
BC64 K形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num + 1; i > 1; i--){int mmp = i;while(mmp--)printf("* ");printf("\n");}for(int i = 1; i <= num + 1; i++){int n = i;while(n--)printf("* ");printf("\n");}}return 0;
}
BC65 箭形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num + 1; i++){int mmp = (num - i + 1) * 2;for(int j = mmp; j > 0; j--)printf(" ");int nmmp = i;while(nmmp--)printf("*");printf("\n");}for(int i = num; i > 0; i--){int op = (num - i + 1) * 2;while(op--)printf(" ");int oo = i;while(oo--)printf("*");printf("\n");}}return 0;
}
BC66 反斜线形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 0; i < num; i++){int j = i;for(int j = 0; j < i; j++)printf(" ");printf("* \n");}}return 0;
}
BC67 正斜线形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = num - 1; i >= 0; i--){int j = i;for(int j = 0; j < i; j++)printf(" ");printf("* \n");}}return 0;
}
BC68 X形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num; i++){for(int j = 1; j <= num; j++){if(i == j || j == num - i + 1)printf("*");elseprintf(" ");}printf("\n");}}return 0;
}
BC69 空心正方形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num; i++){for(int j = 1; j <= num; j++){if(i == 1 || i == num || j == 1 || j == num)printf("* ");elseprintf(" ");}printf("\n");}}return 0;
}
BC70 空心三角形图案
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num; i++){for(int j = 1; j <= num; j++){if(j == i || j == 1 || i == num)printf("* ");elseprintf(" ");}printf("\n");}}return 0;
}
BC71 新年快乐
#include <stdio.h>
int main()
{printf("Happy New Year*2019*\n");return 0;
}
BC72 平均身高
#include <stdio.h>
int main()
{float h1, h2, h3, h4, h5;scanf("%f %f %f %f %f", &h1, &h2, &h3, &h4, &h5);printf("%.2f", (h1+h2+h3+h4+h5)/5.0);return 0;
}
BC73 挂科危险
#include <stdio.h>
int main()
{int score = 0;scanf("%d", &score);if(score >= 0 && score <= 3)printf("Good\n");else if(score >= 4 && score <= 9)printf("Danger\n");elseprintf("Danger++\n");
}
BC74 HTTP状态码
#include<stdio.h>
int main()
{int n;while (scanf("%d",&n)!=EOF){switch(n){case 200:printf("OK\n");break;case 202:printf("Accepted\n");break;case 400:printf("Bad Request\n");break;case 403:printf("Forbidden\n");break;case 404:printf("Not Found\n");break;case 500:printf("Internal Server Error\n");break;case 502:printf("Bad Gateway\n");break;}}return 0;
}
BC75 数字三角形
#include <stdio.h>
int main()
{int num = 0;while(scanf("%d", &num) != EOF){for(int i = 1; i <= num; i++){for(int j = 1; j <= i; j++){printf("%d ", j);}printf("\n");}}return 0;
}
BC76 公务员面试
#include <stdio.h>
void sort(int a[], int length);
int main()
{int a[7] = {0};while(scanf("%d %d %d %d %d %d %d", &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6]) != EOF){sort(a, 7);printf("%.2f\n", (a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6])/5.0);}return 0;
}
void sort(int a[], int length)
{int max = 0;int min = 0;for(int i = 1; i < 7; i++){if(a[i] > a[max])max = i;else if(a[i] < a[min])min = i;}a[max] = 0;a[min] = 0;
}
BC77 有序序列插入一个数
#include <stdio.h>
int main()
{int m = 0, num = 0, j = 0;scanf("%d", &m);int *arr = (int *)malloc((m+1) * sizeof(int));for(int i = 0; i < m; i++)scanf("%d", &arr[i]);scanf("%d", &num);for(j = m-1; arr[j] > num && j >= 0; j--)arr[j+1] = arr[j];arr[j+1] = num;for(int k = 0; k < m+1; k++)printf("%d ", arr[k]);free(arr);return 0;
}
BC78 筛选法求素数
#include <stdio.h>
int main()
{int num = 0, flag = 0, cut = 0;scanf("%d", &num);for(int i = 2; i <= num; i++){for(int j = 2; j < i; j++){flag = 0;if(i % j == 0){flag = 1;cut++;break;}}if(flag == 0){printf("%d ", i);}}printf("\n%d\n", cut);return 0;
}
BC79 图像相似度
#include <stdio.h>
double Get_similar(int a, int b)
{int *p;int *q;int i;int count = 0;p = (int*)malloc((a*b)*sizeof(int));//开辟第一个图片空间q = (int*)malloc((a*b)*sizeof(int));//开辟第二个图片空间if(q != NULL && p != NULL){for(i = 0; i < a*b; i++)//输入第一个图片{scanf("%d ", &p[i]);}for(i = 0; i < a*b; i++)//输入第二个图片{scanf("%d ", &q[i]);}for(i = 0; i < a*b; i++)//如果像素点相同,count就+1{if(p[i] == q[i]){count++;}}}free(p); //记得释放空间free(q);return count*100/(double)(a*b);
}
int main()
{int a,b;double similar;scanf("%d %d",&a,&b);similar = Get_similar(a, b);printf("%.2f", similar);return 0;
}
BC80 登录验证
#include <stdio.h>
#include <string.h>
int main()
{char admin[10];char password[10];while(scanf("%s %s", admin, password) != EOF){if(strcmp(admin, "admin") == 0 && strcmp(password, "admin") == 0)printf("Login Success!\n");elseprintf("Login Fail!\n");}return 0;
}
BC81 学好C++
#include <stdio.h>
int main()
{printf("I will learn C++ well!");return 0;
}
BC82 (a+b-c)*d的计算问题
#include <stdio.h>
int main()
{int a = 0, b = 0, c = 0, d = 0;scanf("%d %d %d %d", &a, &b, &c, &d);printf("%d", (a+b-c)*d);return 0;
}
BC83 被5整除问题
#include <stdio.h>
int main()
{int n = 0;scanf("%d", &n);if(n % 5 == 0)printf("YES\n");elseprintf("NO\n");return 0;
}
BC84 计算y的值
#include <stdio.h>
int main()
{int x = 0;scanf("%d", &x);if(x == 0)printf("0\n");else if(x < 0)printf("1\n");elseprintf("-1\n");return 0;
}
BC85 包含数字9的数
#include <stdio.h>int main()
{int cnt = 0;for (int i = 1; i <= 2019; i++){int m = i;while (m > 0){if (m % 10 == 9){cnt++;break;}else{m /= 10;}}}//输出printf("%d\n", cnt);return 0;
}
BC86 奇偶统计
#include <stdio.h>
int main()
{int n = 0;int x = 0, y = 0;scanf("%d", &n);for(int i = 1; i <= n; i++){if(i % 2 == 0)y++;elsex++;}printf("%d %d", x, y);return 0;
}
BC87 统计成绩
#include <stdio.h>
int main()
{int n = 0, max = 0, min = 0;float sum = 0;scanf("%d", &n);float *arr = (float *)malloc(n * sizeof(float));if(arr != NULL){for(int i = 0; i < n; i++){scanf("%f ", &arr[i]);sum += arr[i];if(arr[i] > arr[max])max = i;if(arr[i] < arr[min])min = i;}}printf("%.2f %.2f %.2f", arr[max], arr[min], sum / n);free(arr);return 0;
}
BC88 有序序列插入一个数
#include <stdio.h>
int main()
{int m = 0, num = 0, j = 0;scanf("%d", &m);int *arr = (int *)malloc((m+1) * sizeof(int));for(int i = 0; i < m; i++)scanf("%d", &arr[i]);scanf("%d", &num);for(j = m-1; arr[j] > num && j >= 0; j--)arr[j+1] = arr[j];arr[j+1] = num;for(int k = 0; k < m+1; k++)printf("%d ", arr[k]);free(arr);return 0;
}
BC89 密码验证
#include <stdio.h>
#include <string.h>
int main()
{char password[20];char repassword[20];while(scanf("%s %s", password, repassword) != EOF){if(strcmp(password, repassword) == 0)printf("same\n");elseprintf("different\n");}return 0;
}
BC90 矩阵计算
#include <stdio.h>
int main()
{int N, M, sum = 0;scanf("%d %d", &N, &M);int *arr = (int *)malloc(N*M*sizeof(int));for(int i = 0; i < N*M; i++){scanf("%d ", &arr[i]);if(arr[i] > 0)sum += arr[i];}printf("%d", sum);return 0;
}
BC91 成绩输入输出问题
#include <stdio.h>
#define N 10
int main()
{int a[N] = {0};for(int i = 0; i < 10; i++){scanf("%d ", &a[i]);printf("%d ", a[i]);}return 0;
}
BC92 逆序输出
#include <stdio.h>
#define N 10
int main()
{int a[N] = {0};for(int i = 0; i < N; i++){scanf("%d ", &a[i]);}for(int j = N - 1; j >= 0; j--)printf("%d ", a[j]);return 0;
}
BC93 统计数据正负个数
#include <stdio.h>
int main()
{int pos = 0, nav = 0;int n = 10;int num = 0;while(n--){scanf("%d ", &num);if(num > 0)pos++;if(num < 0)nav++;}printf("positive:%d\n", pos);printf("negative:%d\n", nav);return 0;
}
BC94 N个数之和
#include <stdio.h>
int main()
{int N = 0, num = 0, sum = 0;scanf("%d", &N);while(N--){scanf("%d ", &num);sum += num;}printf("%d\n", sum);return 0;
}
BC95 最高分与最低分之差
#include <stdio.h>
int main()
{int N = 0, num = 0, max = 0, min = 100;scanf("%d", &N);while(N--){scanf("%d ", &num);if(num > max) max = num;if(num < min) min = num;}printf("%d\n", max - min);return 0;
}
BC96 有序序列判断
#include <stdio.h>int main()
{int n = 0;int arr, num;int flag1 = 0;int flag2 = 0;//输入scanf("%d", &n);for (int i = 0; i < n; i++){scanf("%d", &arr);if (i > 0){if (arr > num){flag1 = 1;}else if (arr < num){flag2 = 1;}}num = arr;}//三目操作符打印//如果全相等,结果为0,为有序(flag1 + flag2 > 1) ? printf("unsorted\n") : printf("sorted\n");return 0;
}
BC97 有序序列插入一个整数
#include <stdio.h>
int main()
{int m = 0, num = 0, j = 0;scanf("%d", &m);int *arr = (int *)malloc((m+1) * sizeof(int));for(int i = 0; i < m; i++)scanf("%d ", &arr[i]);scanf("%d", &num);for(j = m-1; arr[j] > num && j >= 0; j--)arr[j+1] = arr[j];arr[j+1] = num;for(int k = 0; k < m+1; k++)printf("%d ", arr[k]);free(arr);return 0;
}
BC98 序列中删除指定数字
#include <stdio.h>
int main()
{int m = 0, num = 0, j = 0;scanf("%d", &m);int *arr = (int *)malloc(m * sizeof(int));for(int i = 0; i < m; i++)scanf("%d ", &arr[i]);scanf("%d", &num);for(j = 0; j < m; j++){if(num != arr[j])printf("%d ", arr[j]);}printf("\n");free(arr);return 0;
}
BC99 序列中整数去重
#include <stdio.h>
int main()
{int m = 0, num = 0, flag = 0;scanf("%d", &m);int *arr = (int *)malloc(m * sizeof(int));for(int i = 0; i < m; i++)scanf("%d ", &arr[i]);for(int j = 0; j < m; j++){flag = 0;for(int k = 0; k < j; k++){if(arr[j] == arr[k]) flag = 1;}if(flag == 0)printf("%d ", arr[j]);}printf("\n");free(arr);return 0;
}
BC100 有序序列合并
#include <stdio.h>
int main()
{int N = 0, M = 0, k = 0, flag = 0;scanf("%d %d", &N, &M);int *first = (int *)malloc((N+M)*sizeof(int));int *second = (int *)malloc(M*sizeof(int));for(int i = 0; i < N; i++){scanf("%d ", &first[i]);}for(int j = 0; j < M; j++){scanf("%d ", &second[j]);}for(int i = 0; i < M; i++){flag = 0;for(k = N - 1; k >= 0; k--){if(first[k] > second[i]) {first[k+1] = first[k];if(k == 0)flag = 1;}else{first[k+1] = second[i];break;}}if(flag == 1)first[0] = second[i];N++;}for(int x = 0; x < N; x++){printf("%d ", first[x]);}free(first);free(second);return 0;
}
BC101 班级成绩输入输出
#include<stdio.h>
int main()
{double arr[5][5];for(int i = 0; i < 5; i++){scanf("%lf %lf %lf %lf %lf", &arr[i][0], &arr[i][1], &arr[i][2], &arr[i][3], &arr[i][4]);}for(int i = 0; i < 5; i++){double sum = 0;for(int j = 0; j < 5; j++){printf("%.1f ", arr[i][j]);sum += arr[i][j];}printf("%.1f\n", sum);}return 0;
}
BC102 矩阵元素定位
#include <stdio.h>
int main()
{int H = 0, L = 0;scanf("%d %d", &H, &L);int *arr = (int *)malloc(H*L*sizeof(int));for(int i = 0; i < H*L; i++){scanf("%d ", &arr[i]);}int sH, sL;scanf("%d %d", &sH, &sL);printf("%d\n", arr[(sH-1)*L+sL-1]);free(arr);
}
BC103 序列重组矩阵
#include <stdio.h>
int main()
{int n = 0, m = 0;scanf("%d %d", &n, &m);int *arr = (int *)malloc(n*m*sizeof(int));for(int i = 0; i < n*m; i++){scanf("%d ", &arr[i]);if(i != 0 && i % m == 0)printf("\n");printf("%d ", arr[i]);}free(arr);return 0;
}
BC104 最高身高
#include <stdio.h>
int main()
{int N = 0, M = 0, max = 0;scanf("%d %d", &N, &M);int *arr = (int *)malloc(N*M*sizeof(int));for(int i = 0; i < N*M; i++){scanf("%d ", &arr[i]);if(arr[i] > arr[max])max = i;}printf("%d %d", max/M + 1, max + 1 - (max/M)*M);
}
BC105 矩阵相等判定
#include <stdio.h>
int main()
{int N = 0, M = 0, max = 0;scanf("%d %d", &N, &M);int *arr = (int *)malloc(N*M*sizeof(int));int *prr = (int *)malloc(N*M*sizeof(int));for(int i = 0; i < N*M; i++){scanf("%d ", &arr[i]);}for(int i = 0; i < N*M; i++){scanf("%d ", &prr[i]);if(arr[i] != prr[i]){printf("No\n");return 0;}}printf("Yes\n");return 0;
}
BC106 上三角矩阵判定
#include <stdio.h>
int main()
{int n = 0, flag = 0;scanf("%d", &n);int *arr = (int *)malloc(n*n*sizeof(int));for(int i = 0; i < n*n; i++){scanf("%d ", &arr[i]);}for(int x = 0; x < n; x++){for(int y = 0; y < x; y++){if(*(arr+x*n+y) != 0)flag = 1;}}if(flag == 1)printf("NO\n");elseprintf("YES\n");free(arr);return 0;
}
BC107 矩阵转置
#include <stdio.h>
int main()
{int n = 0, m = 0;scanf("%d %d", &n, &m);int *arr = (int *)malloc(n*m*sizeof(int));for(int i = 0; i < n*m; i++){scanf("%d ", &arr[i]);}for(int i = 0; i < m; i++){for(int j = 0; j < n; j++){printf("%d ", *(arr+j*m+i));}printf("\n");}free(arr);return 0;
}
BC108 矩阵交换
#include <stdio.h>
int main()
{int n = 0, m = 0;scanf("%d %d", &n, &m);int *arr = (int *)malloc(n*m*sizeof(int));for(int i = 0; i < n*m; i++){scanf("%d ", &arr[i]);}int num = 0;char ch;int h = 0, l = 0;scanf("%d", &num);while(num--){getchar();scanf("%c %d %d", &ch, &h, &l);switch(ch){case 'r':for(int i = 0; i < m; i++){int tmp = *(arr+(h-1)*m+i);*(arr+(h-1)*m+i) = *(arr+(l-1)*m+i);*(arr+(l-1)*m+i) = tmp;}break;case 'c':for(int i = 0; i < n; i++){int mmp = *(arr+i*m+h-1);*(arr+i*m+h-1) = *(arr+i*m+l-1);*(arr+i*m+l-1) = mmp;}break;default:break;}}for(int i = 0; i < n; i++){for(int j = 0; j < m; j++){printf("%d ", *(arr+i*m+j));}printf("\n");}free(arr);return 0;
}
BC109 杨辉三角
#include <stdio.h>int main()
{int n = 0;int arr[30][30] = { 0 };scanf("%d", &n);for (int i = 0; i < n; i++){for (int j = 0; j <= i; j++){if (0 == j || i == j){arr[i][j] = 1;}else{arr[i][j] = arr[i - 1][j - 1] + arr[i - 1][j];}printf("%5d", arr[i][j]);}printf("\n");}return 0;
}
BC110 井字棋
#include <stdio.h>
int main()
{char arr[3][3] = {0};int i = 0;int j = 0;char flag = 'c';for(i = 0; i < 3; i++){for(j = 0; j < 3; j++){scanf("%c", &arr[i][j]);getchar();}}for(i = 0; i < 3; i++){if(arr[i][0] == arr[i][1] && arr[i][1] == arr[i][2]){flag = arr[i][1];break;}if(arr[0][i] == arr[1][i] && arr[1][i] == arr[2][i]){flag = arr[1][i];break;}}if(arr[0][0] == arr[1][1] && arr[1][1] == arr[2][2])flag = arr[1][1];if(arr[0][2] == arr[1][1] && arr[1][1] == arr[2][0])flag = arr[1][1];if(flag == 'K')printf("KiKi wins!");else if(flag == 'B')printf("BoBo wins!");elseprintf("No winner!");return 0;
}
BC111 小乐乐与进制转换
#include <stdio.h>
int main()
{int n = 0;int m = 0;int a[9] = {0};int size = 0;scanf("%d", &n);while(n){m = n % 6;a[size++] = m;n = n / 6;}for(int j = size-1; j >= 0; j--)printf("%d", a[j]);return 0;
}
BC112 小乐乐求和
#include <stdio.h>
int main()
{int n = 0;long sum = 0;scanf("%d", &n);while(n){sum += n;n--;}printf("%ld",sum);return 0;
}
BC113 小乐乐定闹钟
#include <stdio.h>
int main()
{int hour = 0, min = 0;long after = 0;scanf("%d:%d %d", &hour, &min, &after);int all = hour * 60 + min + after;printf("%02d:%02d", all/60%24, all%60);return 0;
}
BC114 小乐乐排电梯
#include <stdio.h>
int main()
{int n = 0;scanf("%d", &n);printf("%d", (n/12)*4+2);return 0;
}
BC115 小乐乐与欧几里得
#include <stdio.h>
int main()
{long long n = 0;long long m = 0;scanf("%lld %lld", &n, &m);long long a = n;long long b = m;int t = 0;while (t = a % b){a = b;b = t;}printf("%lld\n", b + m * n / b);return 0;
}
BC116 小乐乐改数字
#include <stdio.h>
int main()
{int a[9];int n, size = 0;int sum = 0;scanf("%d", &n);while(n){int w = n % 10;if((w % 2) == 0)a[size++] = 0;elsea[size++] = 1;
// sum += a[size] * pow(10, i++);n = n / 10;}for(int i = size - 1; i >= 0; i--){sum = sum*10 + a[i];}printf("%d\n", sum);return 0;
}
BC117 小乐乐走台阶
#include <stdio.h>
int fun(int n);
int main()
{int n = 0;int a[35] = {0};scanf("%d", &n);
// printf("%d\n", fun(n));a[0] = 0;a[1] = 1;a[2] = 2;for(int i = 3; i <= n; i++)a[i] = a[i-1] + a[i-2];printf("%d\n", a[n]);return 0;
}
int fun(int n)
{if(n == 1) return 1;if(n == 2) return 2;return fun(n-1) + fun(n-2);
}
BC118 小乐乐与序列
#include<stdio.h>
//桶排序,给出足够多的桶,每个桶里统计输入数字的次数(用于大量数据排序)
int main()
{int n = 0;int temp = 0;scanf("%d", &n);int arr[1000005]={0};while(scanf("%d",&temp)!=EOF){getchar();arr[temp]++;//temp对应的数装进编号为temp的桶里,出现就++}for(int i=1;i<1000005;i++){//从小到大输出每个桶的编号,未出现的不打印
// while(arr[i]--)
// {//有重数方式打印
// printf("%d ",i);
// }if(arr[i]){//无重数打印printf("%d ",i);}}return 0;
}
BC119 小乐乐与字符串
#include <stdio.h>
int main()
{char str[8000] = {0};int count = 0;scanf("%s", str);char * p = str;long long c = 0;long long ch = 0;long long chn = 0;while(*p){if(*p == 'C')c++;else if(*p == 'H')ch+=c;else if(*p == 'N')chn += ch;p++;}printf("%lld\n", chn);return 0;
}
BC121 小乐乐学编程
#include <stdio.h>
int main()
{printf("Practice makes perfect!\n");return 0;
}
BC122 小乐乐算平均分
#include <stdio.h>
int main()
{float a, b, c;scanf("%f %f %f", &a, &b, &c);printf("%.2f %.2f", (a+b+c), (a+b+c)/3);return 0;
}
BC123 小乐乐找最大数
int main()
{int a,b,c,d,x,y;scanf("%d %d %d %d", &a, &b, &c, &d);x = a > b ? a : b;y = c > d ? c : d;printf("%d", x > y ? x : y);return 0;
}
BC124 小乐乐是否被叫家长
#include <stdio.h>
int main ()
{int a, b, c;scanf("%d %d %d", &a, &b, &c);int x = a + b + c;if(x / 3 >= 60){printf("NO");}else{printf("YES");}return 0;
}
BC125 小乐乐转换成绩
#include <stdio.h>
int main()
{int score = 0;scanf("%d", &score);if (score >= 0 && score <= 100){switch (score / 10){case 10:case 9:printf("A\n");break;case 8:printf("B\n");break;case 7:printf("C\n");break;case 6:printf("D\n");break;case 5:case 4:case 3:case 2:case 1:case 0:printf("E\n");break;}}elseprintf("F\n");return 0;
}
BC126 小乐乐算多少人被请家长
#include <stdio.h>
typedef struct node
{float Chinese;float Math;float English;struct node *next;
}Node;
int main()
{int n = 0;Node *head = NULL;scanf("%d", &n);Node *tail = NULL;for(int i = 0; i < n; i++){Node *tmp = (Node *)malloc(sizeof(Node));tmp->next = NULL;scanf("%f %f %f", &(tmp->Chinese), &(tmp->English), &(tmp->Math));if(head == NULL)head = tmp;elsetail->next = tmp;tail = tmp;}Node *cur = head;int count = 0;while(cur){if((cur->Chinese + cur->Math + cur->English) < 180.0)count++;cur = cur->next;}printf("%d\n", count);return 0;
}
BC127 小乐乐算最高分
#include <stdio.h>
int main()
{int n = 0;scanf("%d", &n);int *arr = (int *)malloc(n * sizeof(int));int max = 0;for(int i = 0; i < n; i++){scanf("%d ", &arr[i]);if(arr[i] > max)max = arr[i];}printf("%d\n", max);free(arr);return 0;
}
BC128 小乐乐计算求和
#include <stdio.h>
int Fac(int n);
int Fac_All(int n);
int main()
{int n = 0;scanf("%d", &n);int m = Fac_All(n);printf("%d", m);return 0;
}
int Fac(int n)
{// if(n == 1) return 1;
// return n * Fac(n-1);int sum = 1;for(int i = n; i > 0; i--){sum *= i;}return sum;
}
int Fac_All(int n)
{// if(n == 1) return 1;
// return Fac(n) + Fac_All(n-1);int sum = 0;for(int j = n; j > 0; j--){sum += Fac(j);}return sum;
}
BC129 小乐乐计算函数
#include <stdio.h>
int max3(int a, int b, int c)
{// int max = a;
// if(b > max)
// max = b;
// if(c > max)
// max = c;
// return max;return (a > b ? a : b) > c ? (a > b ? a : b) : c;
}
int main()
{int a = 0;int b = 0;int c = 0;scanf("%d %d %d", &a, &b, &c);float m = ((float)max3(a+b, b, c) / (max3(a, b+c, c) + max3(a, b, b+c)));printf("%.2f\n", m);return 0;
}
BC130 小乐乐查找数字
#include <stdio.h>
int main()
{int n = 0;scanf("%d", &n);int *arr = (int *)malloc(n * sizeof(int));for(int i = 0; i < n; i++){scanf("%d ", &arr[i]);}int m = 0, count = 0;scanf("%d", &m);for(int j = 0; j < n; j++){if(arr[j] == m)count++;}printf("%d", count);free(arr);return 0;
}
BC131 KiKi学程序设计基础
#include <stdio.h>
int main()
{printf("printf(\"Hello world!\\n\");\n");printf("cout << \"Hello world!\" << endl;\n");return 0;
}
BC132 KiKi算期末成绩
#include<stdio.h>
int main(void)
{int a, b, c, d;scanf("%d %d %d %d", &a, &b, &c, &d);double result = 0.2 * a + 0.1 * b + 0.2 * c + 0.5 * d;printf("%.1f", result);return 0;
}
BC133 KiKi说祝福语
#include <stdio.h>
int main ()
{int n;scanf("%d", &n);while(n--){printf("Happy new year!Good luck!\n");}return 0;
}
BC134 KiKi的最高分
#include<stdio.h>
int main()
{ int a, b, c;scanf("%d %d %d",&a,&b,&c); printf("%d",(a > b ? a : b) > c ? (a > b ? a : b) : c); return 0;
}
BC135 KiKi求质数个数
#include<stdio.h>
int main()
{int count = 0;int flag = 0;for (int i = 100; i <= 999;i++) {flag = 1;//默认是素数for (int j = 2; j < i; j++) {if(i % j == 0) {//有能被整除的数flag = 0;break;}}if(flag){count++;}}printf("%d", count);return 0;
}
BC136 KiKi去重整数并排序
#include<stdio.h>
//直接桶排搞定
int main()
{int arr[1001] = {0};int n = 0;int tmp = 0;scanf("%d",&n);while(scanf("%d",&tmp)!=EOF){arr[tmp]++;};for(int i = 0; i < 1001; i++){if(arr[i] != 0)printf("%d ", i);}return 0;
}
BC137 KiKi判断上三角矩阵
#include <stdio.h>
int main()
{int n = 0, flag = 0;scanf("%d", &n);int *arr = (int *)malloc(n*n*sizeof(int));for(int i = 0; i < n*n; i++){scanf("%d ", &arr[i]);}for(int x = 0; x < n; x++){for(int y = 0; y < x; y++){if(*(arr+x*n+y) != 0)flag = 1;}}if(flag == 1)printf("NO\n");elseprintf("YES\n");free(arr);return 0;
}
BC138 KiKi学结构体和指针
#include <stdio.h>
typedef struct node
{int data;struct node *next;
}Node;
void Creat(Node **head, int Legth);
int NodeLength(Node *head);
Node *Delete(Node *head, int da);
void printNode(Node *head);
int main()
{Node *head = NULL;int n = 0;scanf("%d", &n);Creat(&head, n);int m = 0;scanf("%d", &m);head = Delete(head, m);printf("%d\n", NodeLength(head));printNode(head);
}
void Creat(Node **head, int Legth)
{Node *tail = NULL;for(int i = 0; i < Legth; i++){Node *tmp = (Node *)malloc(sizeof(Node));if(tmp != NULL){scanf("%d ", &(tmp->data));tmp->next = NULL;if(*head == NULL)*head = tmp;elsetail->next = tmp;tail = tmp;}}
}
int NodeLength(Node *head)
{Node *tmp = head;int cut = 0;while(tmp){tmp = tmp->next;cut++;}return cut;
}
Node *Delete(Node *head, int da)
{Node *pre = head;Node *tail = head;while(tail){if(tail->data == da){Node *pd = tail;if(tail == head){tail = tail->next;head = head->next;}else{pre->next = tail->next;tail = pre->next;}free(pd);}else{pre = tail;tail = pre->next;}}return head;
}
void printNode(Node *head)
{while(head){printf("%d ", head->data);head = head->next;}
}
BC139 KiKi定义电子日历类
#include <stdio.h>
int main()
{int year, month, day = 0; scanf("%d %d %d", &year, &month, &day);printf("%d/%d/%d", day, month, year);
}
BC140 KiKi设计类继承
#include<stdio.h>
int main()
{ int a, b, d;double c, pi=3.14; scanf("%d%d",&a,&b); scanf("%lf",&c); scanf("%d",&d); printf("%d\n%g\n%d\n",a*b,(pi*c*c),d*d);return 0;
}
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