Submission #1007930

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007930		teesla	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	37 ms	65536 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> find_subset(int l, int u, vector<int> ww) {

    vector<pair<int,int>> w;

    for(int i=0; i<ww.size(); i++){
        w.push_back({ww[i], i});
    }
    sort(w.begin(), w.end());
    vector<int> res;

    int i = 1, f = w.size();
    while(i<=f){

        int meio = (i+f)/2;
        
        int soma = 0;
        for(int j=1; j<=meio; j++) soma += w[w.size()-j].first;
        if(soma < l){i = meio + 1; continue;}

        soma = 0;
        for(int j=0; j<meio; j++) {soma += w[j].first; res.push_back(w[j].second);}
        if(soma > u){f = meio-1;res.clear(); continue;}

        for(int j = 0; j<= meio; j++){
            if(soma >= l and soma <=u) return res;
            soma -= w[j].first;
            soma += w[j+meio].first;
            res[j] = w[j+meio].second;
        }
    }

    return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i=0; i<ww.size(); i++){
      |                  ~^~~~~~~~~~

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