Submission #1267958

#	Time	Username	Problem	Language	Result	Execution time	Memory
1267958		gry3125	Portal (BOI24_portal)	C++20	1 / 100	47 ms	1860 KiB

Main

#include <bits/stdc++.h>
#define pb push_back
#define ll long long int
#define all(v) (v).begin(),(v).end()
#define fi first 
#define se second
using namespace std;

int main() {
    int n; cin >> n;
    vector<pair<ll,ll>> p;
    p.resize(n);
    for (int i = 0; i < n; i++) {
        cin >> p[i].fi >> p[i].se;
    }
    if (n <= 2) {cout << -1; return 0;}
    if (p[0].fi == p[1].fi && p[1].fi == p[2].fi) {cout << -1; return 0;}
    if (p[0].se == p[1].se && p[1].se == p[2].se) {cout << -1; return 0;}
    ll ans = -1;
    if (p[0].fi == p[1].fi) {
    	ans = max(ans, abs((p[0].se-p[1].se)*(p[2].fi-p[0].fi)));
    }
    if (p[1].fi == p[2].fi) {
    	ans = max(ans, abs((p[1].se-p[2].se)*(p[0].fi-p[1].fi)));
    }
    if (p[1].fi == p[2].fi) {
    	ans = max(ans, abs((p[2].se-p[0].se)*(p[1].fi-p[0].fi)));
    }
    if (p[0].se == p[1].se) {
    	ans = max(ans, abs((p[0].fi-p[1].fi)*(p[2].se-p[0].se)));
    }
    if (p[1].se == p[2].se) {
    	ans = max(ans, abs((p[1].fi-p[2].fi)*(p[0].se-p[1].se)));
    }
    if (p[1].se == p[2].se) {
    	ans = max(ans, abs((p[2].fi-p[0].fi)*(p[1].se-p[0].se)));
    }
    cout << ans;
    return 0;
}

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