Submission #856010

#	Time	Username	Problem	Language	Result	Execution time	Memory
856010		IS_Rushdi	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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

vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n = w.size();
    vector<pair<int,int>>a;
    for(int i = 0; i < n; i++) a.push_back({w[i],i});
    sort(a.begin(), a.end());
    priority_queue<int>pq;
    long long curr = 0;
    for(int i = n-1; i >= 0; i--){
        if(curr < l){
            curr += a[i].first;
            pq.push(i);
        }else if(curr > u){
            curr-=a[pq.top()].first;
            pq.pop();
            curr+=a[i].first;
            pq.push(i);
        }else break;
    }
    vector<int>ans;
    if(curr < l || curr > r){return ans;}
    while(!pq.empty()){
        ans.push_back(a[pq.top()].second);
        pq.pop();
    }
    return ans;
}
// int main(){

// }

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:24:27: error: 'r' was not declared in this scope
   24 |     if(curr < l || curr > r){return ans;}
      |                           ^