Submission #961241

#	Time	Username	Problem	Language	Result	Execution time	Memory
961241		aminjon__	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include<bits/stdc++.h>
using namespace std;
pair<int,int>w2[200012];
int find_subset(int l , int r , int w[] , int n , int result[]){
	for(int i = 0;i < n;i++){
		w2[i].first = w[i];
		w2[i].second = i;
	}
	int sum = 0 , left = 0 , right = 0;
	sort(w2 , w2+n , greater<pair<int,int>>());
	while(sum < l && right < n){
		sum += w2[right].first;
		result[right] = w2[right].second;
		right++;
	}
	if(sum >= l && sum <= r){
		return right-left;
	}
	else if(sum < l || right == n){
		return 0;
	}
	int last = n-1;
	while(last >= right && sum > r && left < right){
		sum -= w2[left].first-w2[last].first;
		result[right] = w2[last].second;
		last--;
		left++;
	}
	if(sum >= l && sum <= r){
		return right-left;
	}
	return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccenTqd2.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status