2016 China-Final A. Number Theory Problem

http://codeforces.com/gym/101194
只有2^3 - 1可以

#include <bits/stdc++.h>using namespace std;int main(){    int T;    scanf("%d", &T);    for (int i = 1; i <= T; i++) {        int N;        scanf("%d", &N);        printf("Case #%d: %d\n", i, N / 3);    }}