HDU5832-A water problem

A water problem

                                                                           Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)
                                                                                                      Total Submission(s): 2269    Accepted Submission(s): 817

Problem Description

Two planets named Haha and Xixi in the universe and they were created with the universe beginning.

There is 73 days in Xixi a year and 137 days in Haha a year. 

Now you know the days N after Big Bang, you need to answer whether it is the first day in a year about the two planets.

 

Input

There are several test cases(about 5 huge test cases).

For each test, we have a line with an only integer N(0≤N), the length of N is up to 10000000.

 

Output

For the i-th test case, output Case #i: , then output "YES" or "NO" for the answer.

 

Sample Input

100010333

 

Sample Output

Case #1: YESCase #2: YESCase #3: NO

 

Author

UESTC

 

Source

2016中国大学生程序设计竞赛 - 网络选拔赛

 

题意：有两个星球分别是73天一年和137天一年，问n天后，两个星球是否都是一年的第一天

解题思路：模拟，算出n是否是73和137的倍数

#include <iostream>  #include <cstdio>  #include <cstring>  #include <string>  #include <algorithm>  #include <cmath>  #include <map>  #include <cmath>  #include <set>  #include <stack>  #include <queue>  #include <vector>  #include <bitset>  #include <functional>  using namespace std;#define LL long long  const int INF = 0x3f3f3f3f;char ch[10000009];int main(){int cas = 0;while (~scanf("%s", ch)){printf("Case #%d: ", ++cas);int len = strlen(ch);int k = 0,kk=0; for (int i = 0; i < len; i++){k = k * 10 + ch[i]-'0';kk = kk * 10 + ch[i] - '0';k %= 73;kk %= 137;}if (!k && !kk) printf("YES\n");else printf("NO\n");}return 0;}