Submission #891551

#	Time	Username	Problem	Language	Result	Execution time	Memory
891551		1075508020060209tc	Shopping Plans (CCO20_day2problem3)	C++14	5 / 25	1480 ms	1048576 KiB

Main

#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#define int long long
int n;int m;int K;
vector<int>e[500005];


signed main(){
cin>>n>>m>>K;
for(int i=1;i<=n;i++){
    int a;int c;
    cin>>a>>c;
    e[a].push_back(c);
}
for(int i=1;i<=m;i++){
    int a;
    cin>>a;
    cin>>a;
}
for(int i=1;i<=m;i++){
    sort(e[i].begin(),e[i].end());
}
priority_queue<pair<int,pair<int,int>>>pq;
{
    int S=0;
    for(int i=1;i<=m;i++){
            if(e[i].size()==0){
                for(int j=1;j<=K;j++){
                    cout<<"-1\n";
                }return 0;
            }
            S+=e[i][0];
    }
    pq.push({-S,{0,-1}});
}
while(K--){

    if(pq.size()==0){
        for(int i=1;i<=K+1;i++){
            cout<<"-1\n";
        }
        return 0;
    }
    int nwv=pq.top().first;
    cout<<-nwv<<"\n";
    int nw=pq.top().second.first;
    int nww=pq.top().second.second;
  //  cout<<nw<<" "<<nww<<"\n";
    pq.pop();
    nwv=-nwv;
    if(nw>=1){
        if(e[nw].size()>nww+1){
            pq.push({-(nwv+-e[nw][nww]+e[nw][nww+1]),{nw,nww+1}});
        }
    }
    for(int j=nw+1;j<=m;j++){
        if(e[j].size()>=2){
            pq.push({-(nwv+e[j][1]-e[j][0]),{j,1}});
        }
    }
}


}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:53:24: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   53 |         if(e[nw].size()>nww+1){
      |            ~~~~~~~~~~~~^~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5