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   Author UESTC   Source 2016中国大学生程序设计竞赛 - 网络选拔赛    Recommend wange2014

总结：打卡题，直接大数取模过

#include<iostream> #include<string> #include<cstdio> int const maxn=10000000+10; char str[maxn]; using namespace std; int main(){ //freopen("/Users/zhangjiatao/Documents/暑期训练/input.txt","r",stdin); int t=0; while(scanf("%s",str)!=EOF) { t++; int i; int rem=0; for(i=0;str[i];i++){ rem=rem*10+str[i]-'0'; rem=rem%10001; } printf("Case #%d: ",t); if(rem==0) printf("YES\n"); else printf("NO\n"); } }