제출 #132598

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
132598		Vardanyan	Hotel (CEOI11_hot)	C++14	20 / 100	4098 ms	55756 KiB

hot

#include <bits/stdc++.h>
using namespace std;
const int N = 500*1000+5;
long long c[N],p[N];
long long v[N],d[N];
bool cmp(pair<long long, long long> a, pair<long long,long> b){
    if(a.first>b.first) return a.first>b.first;
    if(a.first<b.first) return a.first>b.first;
    return a.second<b.second;
}
int main(){
    ios_base::sync_with_stdio(false);
    int n,m,k;
    cin>>n>>m>>k;
    multiset<pair<long long,long long> > ms;
    for(int i = 1;i<=n;i++){
        cin>>c[i]>>p[i];
        ms.insert({c[i],p[i]});
    }
    vector<pair<long long,long long> > all;
    for(int i = 1;i<=m;i++){
        cin>>v[i]>>d[i];
        all.push_back({v[i],d[i]});
    }
    sort(all.begin(),all.end(),cmp);
    int qn = k;
    long long ans = 0;
    for(int i = 0;i<all.size();i++){
        if(!qn) break;
        long long x = all[i].second;
    //    if(ms.lower_bound({x,0}) == ms.end()) continue;
    //    pair<long long,long long> u = *ms.lower_bound({0,x});
        multiset<pair<long long,long long> >::iterator it = ms.begin();
        for(;it!=ms.end();it++){
            pair<long long,long long> u = *it;
            if(u.second>=x) break;
        }
        pair<long long,long long> u = *it;
        if(u.second>=x){
          if(all[i].first-u.first>0){
                ans-=u.first;
                ans+=all[i].first;
                ms.erase(ms.find(u));
                qn--;
          }
        }
    }
    cout<<ans<<endl;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

hot.cpp: In function 'int main()':
hot.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0;i<all.size();i++){
                   ~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 10 / 10
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• Subtask 10: 0 / 10