A water problem(大数取模)

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A water problem

Time Limit: 5000/2500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)
Total Submission(s): 3124 Accepted Submission(s): 1126

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

一定要注意,题目给的是N的长度,一看就知道使用字符串~
题意是看看这个数能不能同时被137和73整除,他俩的最小公倍数是10001,所以取模10001就可以了!

#include <iostream>#include <cstring>#include <cstdio>using namespace std;char n[10000001];int main(){    int t = 1;    while(~scanf("%s", n))    {        int len = strlen(n);        int v = 0;        for(int i=0;i<len;i++)//字符串转化的取模运算        {            v = (v*10 + n[i]-'0') % 10001;        }        if(v==0)            cout<<"Case #"<<t<<": "<<"YES"<<endl;        else            cout<<"Case #"<<t<<": "<<"NO"<<endl;        t++;    }    return 0;}
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