Submission #815251

#	Time	Username	Problem	Language	Result	Execution time	Memory
815251		TheSahib	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	1 ms	304 KiB

molecules

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

using namespace std;

vector<int> find_subset(int v, int u, vector<int> w) {
    long long sum = 0;
    vector<pair<int, int>> arr;
    for (int i = 0; i < w.size(); i++)
    {
        arr.push_back({w[i], i});
    }
    sort(arr.begin(), arr.end());
    
    int l = 0, r = 0;
    while(l <= r){
        if(sum > u){
            sum -= w[l];
            l++;
        }
        else if(sum < v){
            if(r == w.size()){
                return {};
            }
            sum += w[r];
            r++;
        }
        else{
            break;
        }
        if(l > r){
            return {};
        }
    }
    vector<int> ans;
    for(int i = l; i < r; ++i){
        ans.push_back(arr[i].second);
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:23: 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 < w.size(); i++)
      |                     ~~^~~~~~~~~~
molecules.cpp:22:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |             if(r == w.size()){
      |                ~~^~~~~~~~~~~

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