Submission #299153

#	Time	Username	Problem	Language	Result	Execution time	Memory
299153		azatega	Detecting Molecules (IOI16_molecules)	C++11	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include <vector>
#include <algorithm>
#include <iostream>

using namespace std;

#define ll long long

vector<int> find_subset(int l, int u, vector<int> w) {
	vector<pair<ll, int>> new_w;
    vector<int> bl;
    int n = w.size();

	ll tot_sum = 0;
	for(int i = 0; i < n; i++){
		tot_sum += w[i];
		new_w.push_back({w[i], i});
	}

	sort(new_w.begin(), new_w.end());

    ll currsum = 0;
    int tot_sum_idx = 0;

    for(int i = 0; i < n; i++){
    	currsum += new_w[i].first;
    	if(currsum > u)
    		break;

    	while(tot_sum_idx <= i)
  			tot_sum -= new_w[tot_sum_idx++].first;
  		while(tot_sum + currsum > u)
  			tot_sum -= new_w[tot_sum_idx++].first;
  			
    	if(tot_sum + currsum >= l){
    		vector<int> res;
			for(int x = 0; x <= i; x++)
				res.push_back(new_w[x].second);
			for(int x = tot_sum_idx; x < n; x++)
				res.push_back(new_w[x].second);
			
			return res;
    	}
    }

    return bl;
}

int main(){
	int n, l, u;
	vector<int> niz;
	cin >> n >> l >> u;
	
	niz.resize(n);
	for(int i = 0; i < n; i++)
		cin >> niz[i];
	vector<int> rs = find_subset(l, u, niz);
	for(int i = 0; i < rs.size(); i++)
		cout << rs[i] << endl;
}

Compilation message (stderr)

molecules.cpp: In function 'int main()':
molecules.cpp:59:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |  for(int i = 0; i < rs.size(); i++)
      |                 ~~^~~~~~~~~~~
/tmp/ccCRBipG.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cckvCkEe.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status