Submission #68893

#	Time	Username	Problem	Language	Result	Execution time	Memory
68893		mr_banana	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	131 ms	29980 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pair<int,int> > v;
    for(int i=0;i<w.size();i++){
        v.push_back({w[i],i});
    }
    set<pair<int,int> >  ans;
    sort(v.begin(),v.end());
    long long sum=0;
    for(int i=0;i<v.size();i++){
        if(sum+v[i].first<=u){
            sum+=v[i].first;
            ans.insert(v[i]);
        }
        else if(sum+v[i].first-ans.begin()->first<=u){
            sum+=v[i].first-ans.begin()->first;
            ans.erase(ans.begin());
            ans.insert(v[i]);
        }
    }
    vector<int> ans1;
    if(sum>=l){
        for(auto i:ans){
            ans1.push_back(i.second);
        }
    }
    return ans1;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<w.size();i++){
                 ~^~~~~~~~~
molecules.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();i++){
                 ~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 23 / 23
• Subtask 6: 31 / 31