Submission #774667

#	Time	Username	Problem	Language	Result	Execution time	Memory
774667		Sandarach151	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	53 ms	6200 KiB

molecules

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

vector<int> find_subset(int l, int u, vector<int> temp) {
    vector<pair<int, int>> w;
    for(int i=0; i<temp.size(); i++){
        w.push_back({temp[i], i});
    }
    sort(w.begin(), w.end());
    int pos1 = 0;
    int pos2 = 0;
    long long cursum = w[0].first;
    vector<int> ans;
    bool res = true;
    while(true){
        if(cursum<l){
            pos2++;
            if(pos2<w.size()){
                cursum+=w[pos2].first;
            }
            else{
                res = false;
                break;
            }
        }
        else if(cursum>u){
            cursum-=w[pos1].first;
            pos1++;
            if(pos1>pos2){
                res = false;
                break;
            }
        }
        else{
            break;
        }
    }
    if(res==false){
        return ans;
    }
    else{
        for(int i=pos1; i<=pos2; i++){
            ans.push_back(w[i].second);
        }
        return ans;
    }
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for(int i=0; i<temp.size(); i++){
      |                  ~^~~~~~~~~~~~
molecules.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |             if(pos2<w.size()){
      |                ~~~~^~~~~~~~~

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