제출 #538719

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
538719		fabijan_cikac	Hiring (IOI09_hiring)	C++17	0 / 100	838 ms	28444 KiB

hiring

#include <bits/stdc++.h>

using namespace std;

#define F first
#define S second
#define db double
#define pp pair<db, db>
#define ppp pair<db, pp>

int n; db w;
vector<db> sk;
vector<db> q;
vector<pair<db, int> > v;
set<pair<db, int> > s;
int siz = 0;
vector<int> sol;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> w;
    sk.resize(n); q.resize(n);
    for (int i = 0; i < n; ++i){
        cin >> sk[i] >> q[i];
        v.push_back({sk[i] / q[i], i});
    }
    sort(v.begin(), v.end()); db sum = 0;
    for (int i = 0; i < n; ++i){
        s.insert({q[v[i].S], i}); sum += q[v[i].S];
        while (!s.empty() && sum * v[i].F > w){
            auto it = s.end(); --it;
            sum -= (*it).F; s.erase(it);
        }
        //siz = max(siz, (int)(s.size()));
    }
    cout << siz << '\n'; s.clear(); sum = 0;
    for (int i = 0; i < n; ++i){
        s.insert({q[v[i].S], i}); sum += q[v[i].S];
        while (!s.empty() && sum * v[i].F > w){
            auto it = s.end(); --it;
            sum -= (*it).F; s.erase(it);
        }
        if (siz == (int)(s.size())){
            for (auto x: s)
                sol.push_back(x.S + 1);
            break;
        }
    }
    sort(sol.begin(), sol.end());
    for (int i = 0; i < sol.size(); ++i)
        cout << sol[i] << '\n';

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

hiring.cpp: In function 'int main()':
hiring.cpp:52:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     for (int i = 0; i < sol.size(); ++i)
      |                     ~~^~~~~~~~~~~~

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