문제
풀이
#include <iostream>
using namespace std;
void solve(void) {
int n; cin >> n;
int t, b; cin >> t >> b;
while (--n) {
int _t, _b; cin >> _t >> _b;
t = max(t, _t);
b = min(b, _b);
}
cout << (t * b) % 7 + 1;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}