Submission #968470

#	Time	Username	Problem	Language	Result	Execution time	Memory
968470		amine_aroua	Aliens (IOI16_aliens)	C++17	25 / 100	2065 ms	22364 KiB

aliens

#pragma once

#include <bits/stdc++.h>
using namespace std;
#define fore(i , n) for(int i = 0;i<n;i++)
#define forr(i , x , y) for(int i = x;i<=y;i++)
#define ll long long
#define pb push_back
const ll INF = 1e18;
bool cmp(const pair<ll , ll> &a , const pair<ll , ll> &b)
{
    if(a.first == b.first)
    {
        return a.second > b.second;
    }
    return (a.first < b.first);
}
long long take_photos(int n, int m, int g, std::vector<int> r, std::vector<int> c)
{
    vector<pair<ll ,ll>> range;
    range.pb({-1 ,-1});
    fore(i ,n)
    {
        range.pb({min(r[i] , c[i]) , max(r[i]  , c[i])});
    }
    sort(range.begin() , range.end());
    range.erase(unique(range.begin() , range.end()) , range.end());
    pair<ll , ll> last = range[1];
    vector<pair<ll,ll>> ranges;
    ranges.pb({-1 ,-1});
    ranges.pb(range[1]);
    forr(i , 2 , (int)range.size() - 1)
    {
        if(range[i].second > last.second)
        {
            ranges.pb(range[i]);
            last = range[i];
        }
    }
    int N = (int)ranges.size() - 1;
    g = min(g , N);
    ll dp[N + 1][g + 1];
    fore(i , N + 1)
        fore(j , g + 1)
            dp[i][j]= INF;
    dp[0][0] = 0;
    ranges[0] = {0 , INT_MIN};
    forr(i , 1 , N)
    {
        forr(j , 1 , g)
        {
            for(int l = 0 ; l < i ; l++)
            {
                dp[i][j] = min(dp[i][j] , dp[l][j - 1] + (ranges[i].second - ranges[l + 1].first + 1) * (ranges[i].second - ranges[l + 1].first + 1) - max(0ll , ranges[l].second - ranges[l + 1].first + 1)*max(0ll , ranges[l].second - ranges[l + 1].first + 1));
            }
        }
    }
    ll ans = INF;
    forr(j , 1 , g)
        ans = min(ans , dp[N][j]);
    return ans;
}

Compilation message (stderr)

aliens.cpp:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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