Submission #1085009

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085009		nickolasarapidis	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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

vector<int> find_subset(int l, int u, vector<int> w){
    int N = w.size();
    
    vector<pair<int, int>> W(N);
    
    for(int i = 0; i < N; i++){
        W[i] = make_pair(w[i], i);    
    }
    
    vector<int> ans;
    
    int sum = 0;
    
    for(int i = 0; i < N; i++){
        sum += W[i].first;
    }
    
    if(sum >= l and sum <= u){
        for(int i = 0; i < N; i++){
            ans.push_back(i);
        }
        
        return ans;
    }
    
    if(sum < l){
        return ans;
    }
    
    sort(W.begin(), W.end());
    
    bool found = false;
    
    set<int> s;
    
    sum = 0;
    
    for(int i = 0; i < N; i++){
        sum += W[i].first;
        ans.push_back(W[i].second);
        if(sum >= l and sum <= u){
            found = true;
            break;
        }
    }
    
    if(found == false) return {};
    
    /*for(int i = 0; i < N; i++){
        if(s.count(W[i].second) == 0){
            ans.push_back(W[i].second);
        }
    }*/
    
    return ans;
}

int main(){
    vector<int> A = find_subset(10, 20, {15, 16, 17, 18});
    
    for(int i = 0; i < A.size(); i++){
        cout << A[i] << " ";
    }
}

Compilation message (stderr)

molecules.cpp: In function 'int main()':
molecules.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |     for(int i = 0; i < A.size(); i++){
      |                    ~~^~~~~~~~~~
/usr/bin/ld: /tmp/cchbcoyu.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccZz84lq.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status