Submission #819026

#	Time	Username	Problem	Language	Result	Execution time	Memory
819026		vjudge1	Aliens (IOI16_aliens)	C++17	4 / 100	1 ms	300 KiB

aliens

#include<bits/stdc++.h>
#include "aliens.h"

using namespace std;
using ll = long long;

ll take_photos(int n, int m, int k, vector<int> r, vector<int> c) {
    vector<pair<ll, ll>> a;
    for(int i = 0; i < n; i++) {
        if(r[i] > c[i]) swap(r[i], c[i]);
        a.push_back({r[i], c[i]});
    }
    sort(a.begin(), a.end());
    ll mx = -1;
    ll res = 0;
    for(auto [r, c] : a) {
        if(c <= mx) continue;
        res += (c - r + 1) * (c - r + 1);
        if(mx >= r) res -= (mx - r + 1) * (mx - r + 1);
        mx = max(mx, c);
    }
    return res;
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 40