HDU5832

　　A water problem

Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)
Total Submission(s): 774    Accepted Submission(s): 397

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

10001

0

333

 

Sample Output

Case #1: YES

Case #2: YES

Case #3: NO

 

大数取模

//2016.8.16
#include<cstdio>
#include<cstring>

using namespace std;

char s[10000005];

int main()
{
    long long n, m, pos;
    int kase = 0, len;
    while(scanf("%s", s)!=EOF)
    {
        pos = n = m = 0;
        len = strlen(s);
        while(pos < len)
        {
            for(int i = 0; i < 15 && pos<len; i++, pos++)
            {
                n = n*10+(s[pos]-'0');
                m = m*10+(s[pos]-'0');
            }
            n %= 73;
            m %= 137;
        }
        if(!n&&!m)printf("Case #%d: YES
", ++kase);
        else printf("Case #%d: NO
", ++kase);
    }

    return 0;
}