Submission #1037159

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037159		vjudge1	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	39 ms	9420 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<int> ans;
    vector<pair<ll, ll>> v;
    ll n=w.size();
    for(int i=0; i<w.size(); i++){
        v.push_back({w[i], i});
    }

    sort(v.begin(), v.end());
    ll i=0, j=0, sum=0;
    while(j<n && i<n){
        while(j<n && sum<l){
            sum+=v[j++].first;
        }
        if(sum>=l && sum<=u && v[j-1].first-v[i].first<=u-l){
            for(int k=i; k<j; k++){
                ans.push_back(v[k].second);
                //cout<<v[j].second<<' ';
            }
            return ans;
        }
        sum-=v[i].first;
        if(sum>=l && sum<=u && v[j-1].first-v[i+1].first<=u-l){
            for(int k=i+1; k<j; k++){
                ans.push_back(v[k].second);
                //cout<<v[j].second<<' ';
            }
            return ans;
        }
        i++;
    }
    return ans;
}
/*
[]
2 14
1 5 6 7 8
1 2 3 3 4 4
*/

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<w.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