Submission #649482

#	Time	Username	Problem	Language	Result	Execution time	Memory
649482		groshi	Cake 3 (JOI19_cake3)	C++17	0 / 100	1 ms	336 KiB

cake3

#include<iostream>
#include<vector>
#include<algorithm>
#define int long long
using namespace std;
int wynik[300000];
vector<pair<int,int> > Q;
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n,m,x,y;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        cin>>x>>y;
        Q.push_back({y,x});
    }
    sort(Q.begin(),Q.end());
    int suma=0;
    int wynikk=0;
    for(int i=0;i<n;i++)
    {
        suma+=Q[i].second;
        if(i+1<m)
        {
            wynik[i]=-suma+Q[i].second+2*Q[i].first;
            continue;
        }
        wynikk=max(wynikk,suma-2*Q[i].first+wynik[i-m+1]);
        wynik[i]=-suma+Q[i].second+2*Q[i].first;
    }
    cout<<wynikk;
    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 19
• Subtask 3: 0 / 76