Submission #1235735

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235735		coco2311	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	33 ms	5192 KiB

molecules

#include "molecules.h"
#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;

#define f first
#define s second

#define ll long long

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    ll N=w.size();
    pair<ll,ll> arr[N];
    for(int i=0;i<N;i++){
        arr[i].f=w[i];
        arr[i].s=i;
    }
    sort(arr,arr+N);
    ll sum=0;
    ll it=N;
    for(int i=N-1;i>=0;i--){
        it=i;
        sum+=arr[i].f;
        if(sum>=l){
            break;
        }
    }
    if(it == 0 && sum<l){
        return {};
    }
    ll x=N-1;
    while(it>=0){
        if(sum>=l && sum<=u){
            vector<int> v;
            for(int i=it;i<=x;i++){
                v.push_back(arr[i].s);
            }
            return v;
        }
        if(it==0){
            break;
        }
        sum-=arr[x].f;
        sum+=arr[it-1].f;
        it--;
        x--;
    }
    return {};  
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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