Time Limit: 5000/2500 MS(Java/Others) Memory Limit: 65536/65536 K (Java/Others)
Total Submission(s): 5814 Accepted Submission(s): 1238
Problem Description
Two planets named Haha andXixi 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 ina year about the two planets.
Input
There are several testcases(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
题解：
求是否是两个年份的第一天，只要是他们的公倍数就可以了，不过N的长度是10000000，所以要用到大数求余
代码：
#include<iostream> #include<cstdio> #include<cstring> using namespace std; char s[10000000+5],result[1000]; int main() { long long mod,divis; int n,i,k,flag,len; char c; int kase = 0; while(scanf("%s",s)!=EOF) { printf("Case #%d: ",++kase); len=strlen(s); int n= 10001; mod=0; for(i=0; i<len; i++) { mod=mod*10+s[i]-'0'; mod=mod%n; } if(mod==0) { printf("YES\n"); } else { printf("NO\n"); } } return 0; }