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实验三：摄氏温度与华氏温度的转换

#include

int main()

{

float celsius;

float fahrenheit;

printf("The fahrenheit is : ");

scanf("%f",&fahrenheit);

celsius=5.0/9.0*(fahrenheit-32.0);

printf("\nThe celsius is:%f",celsius);

return 0;

}

实验四：

1.三个数比较大小

#include

int main()

{

int a,b,c,max,min;

scanf("%d%d%d",&a,&b,&c);

if(a>b)

{

max=a;

min=b;

}

else

{

max=b;

min=a;

}

if(max>c)

printf("max=%d",max);

else

printf("max=%d",c);

if(min

printf("min=%d",min);

else

printf("min=%d",c);

方法二：

#include

int main()

{

int a,b,c,max,min;

scanf("%d%d%d",&a,&b,&c);

if(a>b) max=a,min=b;

elsemax=b,min=a;

if(c>max) max=c;

if(c

printf("max=%d",max);

printf("min=%d",min);

return 0;

}

2.

#include

int main()

{

float I,bonus;

printf("I= ");

scanf("%f",&I);

if(I>1000000) bonus=100000*0.1+100000*0.075+200000*0.05+200000*0.03+400000*0.015+(I-1000000) *0.01;

else if(I>600000) bonus=100000*0.1+100000*0.075+200000*0.05+200000*0.03+(I-600000)*0.015;

else if(I>400000) bonus=100000*0.1+100000*0.075+200000*0.05+(I-400000)*0.03;

else if(I>200000) bonus=100000*0.1+100000*0.075+(I-200000)*0.05;

else if(I>100000) bonus=100000*0.1+(I-100000)*0.075;

else bonus=I*0.1;

printf("bonus=%f",bonus);

return 0;

}

3.百马百担

#include

int main()

{

int m,n,k;

int sum=0;

printf("各种驮法如下：\n ");

for(m=1;m<=100/3;m++ )

for(n=1;n<100/2;n++)

{

k=100-m-n;

if((2*3*m+2*2*n+k)==2*100)

{

printf("大马%d匹; 中马%d匹; 小马%d匹.\n ",m,n,k);

sum++;

}

}

printf("共有%d种驮法. ",sum);

return 0;

}

实验五：

1，日期转换

#include

main()

{

int num,day,month,year;

printf("请输入年份:");

scanf("%d",&year);

printf("\n请输入月份:");

scanf("%d",&month);

printf("\n请输入日期:");

scanf("%d",&day);

if(year%4==0)

{

f=29;

if(year%100==0)

f=28;

}

else if(year%400==0)

f=29;

else

f=28;

if(month==1)

num=day;

else if(month==2)

num=31+day;

else if(month==3)

num=31+f+day;

else if(month==4)

num=31+f+31+day;

else if(month==5)

num=31+f+31+30+day;

else if(month==6)

num=31+f+31+30+31+day;

else if(month==7)

num=31+f+31+30+31+30+day;

else if(month==8)

num=31+f+31+30+31+30+31+day;

else if(month==9)

num=31+f+31+30+31+30+31+31+day;

else if(month==10)

num=31+f+31+30+31+30+31+31+30+day;

else if(month==11)

num=31+f+31+30+31+30+31+31+30+31+day;

else

num=31+f+31+30+31+30+31+31+30+31+30+day;

printf("结果是%d年的第%d天",year,num);

return 0;

}

2，

#include

main()

{

int num,day,month,year,f;

printf("请输入年份：");

scanf("%d",&year);

printf("请输入天数：");

scanf("%d",&num);

if(year%4==0)

{

f=29;

if(year%100==0)

f=28;

}

else if(year%400==0)

f=29;

else

f=28;

if(f==29)

{

if(num>335)

month=12,day=num-335;

else if(num>305)

month=11,day=num-305;

else if(num>274)

month=10,day=num-274;

else if(num>244)

month=9,day=num-244;

else if(num>213)

month=8,day=num-213;

else if(num>182)

month=7,day=num-182;

else if(num>152)

month=6,day=num-152;

else if(num>121)

month=5,day=num-121;

else if(num>91)

month=4,day=num-91;

else if(num>60)

month=3,day=num-60;

else if(num>31)

month=2,day=num-31;

else

month=1,day=num;

}

else

{

if(num>334)

month=12,day=num-334;

else if(num>304)

month=11,day=num-304;

else if(num>273)

month=10,day=num-273;

else if(num>243)

month=9,day=num-243;

else if(num>212)

month=8,day=num-212;

else if(num>181)

month=7,day=num-181;

else if(num>151)

month=6,day=num-151;

else if(num>120)

month=5,day=num-120;

else if(num>90)

month=4,day=num-90;

else if(num>59)

month=3,day=num-59;

else if(num>31)

month=2,day=num-31;

else

month=1,day=num;

}

printf("结果是%d年%d月%d日",year,month,day);

return 0;

}

3，(1)迭代法：iteration

#include

int X(int);

int main()

{

int n;

printf("计算n！\n请输入n的值：");

scanf("%d",&n);

printf("\n结果是：%d",X(n));

return 0;

}

int X(int n)

{

int i,s=1;

if(n==0)

return(1);

else

{

for(i=1;i<=n;i++)

{

s=s*i;

}

return(s);

}

}

(2)递归法：recursion

#include

int X(int);

int main()

{

int n;

printf("计算n！\n请输入n的值：");

scanf("%d",&n);

printf("结果为：%d",X(n));

return 0;

}

int X(int n)

{

if(n<=1)

return(1);

else

return n*X(n-1);

}