616B - Dinner with Emma - CodeForces Solution

#include <bits/stdc++.h>
#define ll long long
using namespace std;


int main() {
  int t = 1;
  //cin >> t;
  while (t--) {
        ll n , m;
        cin >> n >> m;
        ll mx = 0;
        for(int i = 0; i < n;i++){
            ll mn = 1e9 , a;
            for(int j  =0 ; j <m;j++){
                cin >> a;
                mn = min(mn , a);
            }
            mx = max(mx , mn);
        }
        cout<<mx;
    }
}