Submission #413941

#	Time	Username	Problem	Language	Result	Execution time	Memory
413941		Dakto	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	204 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"

using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<pair<int,int>> v;
    for(int i=0; i<w.size(); i++){
        v.push_back({w[i],i});
    }
    sort(v.begin(),v.end());
    auto f=v[0];
    v.erase(v.begin());
    vector<int> res;
    int s=0;

    while(!v.empty() && s<l){
        if(s+f.first>=l){
            s+=f.first;
            res.push_back(f.second);
            break;
        }
        s+=end(v)->first;
        res.push_back(v.back().second);
        v.erase(v.end()-1);
        if(s>=l) break;
        if(s+f.first>=l){
            s+=f.first;
            res.push_back(f.second);
            break;
        }
    }
    if(s>=l && s<=u) return res;
    else return vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for(int i=0; i<w.size(); i++){
      |                  ~^~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31