Submission #1002563

#	Time	Username	Problem	Language	Result	Execution time	Memory
1002563		ocasu	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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


std::vector<int> find_subset(int l, int u, std::vector<int> z) {
    int n=(int)(w.size());

    vector<pair<int,int>> w(n);
    for (int i=0; i<n; i++) w[i]={z[i],i};
    sort(w.begin(),w.end());

    int pre=0, x=0;
    for (auto i: w){
        if (pre+i.first<l) pre+=i.first, x++;
    }
    vector<int> ans;
    if (x==0){
        return {w[0].second};
    }
    int sum=pre, nxt=x, prev=0;
    while (sum<l and nxt<n){
        sum-=w[prev].first; sum+=w[nxt].first;
        nxt++;
        prev++;
    }
    if (sum<l){
        return {};
    }

    for (int i=prev; i<nxt; 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:7:17: error: 'w' was not declared in this scope
    7 |     int n=(int)(w.size());
      |                 ^
molecules.cpp:19:28: error: could not convert '{<expression error>}' from '<brace-enclosed initializer list>' to 'std::vector<int>'
   19 |         return {w[0].second};
      |                            ^
      |                            |
      |                            <brace-enclosed initializer list>