Submission #1194285

#	Time	Username	Problem	Language	Result	Execution time	Memory
1194285		Unforgettablepl	Portal (BOI24_portal)	C++20	10 / 100	19 ms	1864 KiB

Main

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

#define int long long

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int N;
    cin >> N;
    vector<pair<int,int>> portals(N);
    for(auto&[i,j]:portals)cin>>i>>j;
    int vertical = 0;
    int horizontal = 0;
    for(auto&[x1,y1]:portals){
        vertical = gcd(vertical,portals[0].first-x1);
        horizontal = gcd(horizontal,portals[0].second-y1);
    }
    cout << (vertical*horizontal==0 ? -1 : vertical*horizontal) << '\n';
}

• Subtask 1: 0 / 1
• Subtask 2: 0 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 29
• Subtask 5: 0 / 15
• Subtask 6: 0 / 35