Educational Codeforces Round 122 (Rated for Div. 2) ABCD

A - Div. 7

暴力枚举最后一位

#include
#define int long long
using namespace std;
 
const int N = 1000;
int a[N];
 
inline void init(){
    for(int i = 1; i > n;
    if(n % 7 == 0) cout  a;
    int flag = false;
    for(int i = 0; i