Submission #1364447

#	Time	Username	Problem	Language	Result	Execution time	Memory
1364447		mariza	Meetings (IOI18_meetings)	C++20	19 / 100	2604 ms	851968 KiB

meetings

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

typedef long long ll;
const ll INF=1e18;

vector<ll> minimum_costs(vector<int> a, vector<int> l, vector<int> r){
    ll n=a.size(), q=l.size();

    ll c[n][n];
    for(ll i=0; i<n; i++){
        ll x=0;
        for(ll j=i; j<n; j++){
            x=max(x,(ll)a[j]);
            c[i][j]=x;
            c[j][i]=x;
        }
    }

    for(ll i=0; i<n; i++){
        for(ll j=1; j<n; j++){
            c[i][j]+=c[i][j-1];
        }
    }

    vector<ll> ans;
    for(ll i=0; i<q; i++){
        ll x=INF;
        for(ll j=l[i]; j<=r[i]; j++){
            // cout<<j<<" "<<(c[j][r[i]]-((l[i]==0)?0:c[j][l[i]-1]))<<endl;
            x=min(x,c[j][r[i]]-((l[i]==0)?0:c[j][l[i]-1]));
        }
        ans.push_back(x);
    }
    return ans;
}

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40