CodeForces - 620B Grandfather Dovlet’s calculator（遍历）

题目:传送门
思路: 把0~9都直接手算出来，从a到b逐个遍历，每个数都拆分，更新sum值即可.

#include <iostream>
#include <map>
using namespace std;map<int,int> s;
int sums (int x) { // 计算单个数需要的段.int ans = 0;s[0] = 6;s[1]=2;s[2]=5;s[3] = 5;s[4] = 4;s[5] = 5;s[6] =6;s[7]=3;s[8] =7;s[9]=6;if(x==0) return s[x];else {while(x!=0) {ans+=s[x%10];x/=10;}return ans;}
}int main() {int a,b;cin>>a>>b;int sum = 0;for(int i=a;i<=b;i++) {if(sum<0) cout<<"?"<<endl;sum+=sums(i);    }   cout<<sum<<endl;return 0;
}

CodeForces - 620B Grandfather Dovlet’s calculator（遍历）相关推荐

Codeforces-Edu6-B. Grandfather Dovlet’s calculator
B. Grandfather Dovlet's calculator time limit per test1 second memory limit per test256 megabytes in ...
B. Grandfather Dovlet’s calculator【水题】
time limit per test 1 second memory limit per test 256 megabytes input standard input output standar ...
CodeForces 620 B. Grandfather Dovlet’s calculator（水~）
Description 在电子表上每个数字的显示情况如下图,先给出两个整数a和b,问表示出区间[a,b]中所有数需要多少个黑段 Input 两个整数a和b(1<=a<=b<=10^6 ...
2016区域赛前冲刺训练
UPD 2016.10.23 shift-and (2题) Codeforces 训练现在已经完成了: 191 [Codeforces Round #377] (6/6) Div 2 A Buy a ...
Educational Codeforces Round 37 (Rated for Div. 2) E. Connected Components? 暴力 + 补图的遍历
传送门文章目录题意: 思路: 题意: n≤2e5,m≤2e5n\le2e5,m\le2e5n≤2e5,m≤2e5. 思路: 这是题是我上个题的一部分,算是个小知识点,暴力能过. 直接维护一个set ...
Codeforces 982 C. Cut 'em all! 图的遍历
点击打开链接 C. Cut 'em all! time limit per test 1 second memory limit per test 256 megabytes input standa ...
Codeforces Round #506 (Div. 3)
Codeforces Round #506 (Div. 3) 实习期间事不多,对div3 面向题解和数据编程了一波 A. Many Equal Substrings 题目链接 A题就是找后缀和前缀重合 ...
Codeforces Round #417：E. FountainsSagheer and Apple Tree（树上博弈）
Codeforces Round #417:E. FountainsSagheer and Apple Tree(树上博弈) 标签: codeforces 2017-06-02 11:41 29人阅读 ...
【Codeforces】908B New Year and Buggy Bot（暴力+全排列）
http://codeforces.com/contest/908/problem/B 0 1 2 3 可以对应上下左右.(具体哪个对应哪个,试过才知道) str 的长度为 100,0 1 2 ...

CodeForces - 620B Grandfather Dovlet’s calculator（遍历）

CodeForces - 620B Grandfather Dovlet’s calculator（遍历）相关推荐

最新文章

热门文章