A water problem

Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)
Total Submission(s): 730    Accepted Submission(s): 377

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

 

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大数除法取余，模拟除法过程

#include <stdio.h>#include <string.h>using namespace std;int main(){    int i;    char ch[10000005];    int mod, cnt = 1;    while ( ~scanf ( "%s", ch ) )    {        int len = strlen(ch);        mod = 0;        for ( i = 0; i < len; i++ )        {            mod = (mod*10+ch[i]-'0')%10001;        }        if ( mod )        {            printf ( "Case #%d: NO\n", cnt );        }        else        {            printf ( "Case #%d: YES\n", cnt );        }        cnt++;    }}

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