Submission #1219458

#	Time	Username	Problem	Language	Result	Execution time	Memory
1219458		12345678	Portal (BOI24_portal)	C++20	1 / 100	11 ms	1864 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=1e5+5;

ll n, x[nx], y[nx];

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) cin>>x[i]>>y[i];
    if (n<=2) return cout<<-1, 0;
    pair<ll, ll> v1={x[2]-x[1], y[2]-y[1]}, v2={x[3]-x[1], y[3]-y[1]};
    auto tmp=v1.second*v2.second/__gcd(v1.second, v2.second);
    cout<<abs(v1.first*(tmp/v1.second)-v2.first*(tmp/v2.second));
}

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