Submission #1220470

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220470		nickolasarapidis	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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

#define ll long long
#define F first
#define S second

vector<int> find_subset(int l, int r, vector<int> w){
	int N = w.size(), sum = 0;
	vector<pair<int, int>> W(N);
	for(int i = 0; i < N; i++){
		W[i] = {w[i], i};
	}
	sort(W.begin(), W.end());
	int left = 0;
	for(int right = 0; right < N; r++){
		while(left < N and sum > r){
			sum -= W[left].F;
			left++;
		}
		if(sum >= l and sum <= r){
			for(int i = left; i <= right; i++){
				ans.push_back(W[i].S);
			}
			return ans;
		}
		sum += W[right].F;
	}
	return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:24:33: error: 'ans' was not declared in this scope; did you mean 'abs'?
   24 |                                 ans.push_back(W[i].S);
      |                                 ^~~
      |                                 abs
molecules.cpp:26:32: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |                         return ans;
      |                                ^~~
      |                                abs
molecules.cpp:30:16: error: 'ans' was not declared in this scope; did you mean 'abs'?
   30 |         return ans;
      |                ^~~
      |                abs
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
      |         ^~~~