Codeforces Round #209 (Div. 2) A. Table

#include <iostream>
#include <vector>

using namespace std;

int main(){
    int n,m;
    cin >> n >> m;
    int a[][];
    bool flag = false;
    for(int i =  ; i < n ; ++ i){
        for(int j  = ; j <  m ; ++ j){
            cin >> a[i][j];
        }
    }
    for(int  j = ; j < m; ++ j){
        if(a[][j] || a[n-][j]){
            flag = true;
            break;
        }
    }
    for(int i  = ; i < n ; ++ i){
        if(a[i][] || a[i][m-]){
            flag = true;
            break;
        }
    }
    if(flag) cout<<<<endl;
    else cout<<<<endl;
}