Submission #298999

#	Time	Username	Problem	Language	Result	Execution time	Memory
298999		REALITYNB	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include <bits/stdc++.h> 
using namespace std; 
#define int long long 
int count_swaps(vector<int> a){
	int n = a.size() ;
	int ans = 0  ; 
	for(int i=0;i<n;i++){
		if(a[i]==0) continue ; 
	//	cout <<a[i] << " " ; 
			int ze = 0 ; 
			for(int j=i+1;j<n;j++){
				if(a[j]==0) ze++  ;
				if(a[j]==a[i]*-1){
					ans+=(j-i-(a[i]<0)-ze) , a[j]=0 ;
					cout << j << " " << a[i] << endl ; 
					break ; 
				}
				//if(a[j]==a[i]*-1) break ;  
			}
	}
//	cout << ans ; 
	return ans ; 
}

Compilation message (stderr)

/tmp/ccsv45cQ.o: In function `main':
grader.cpp:(.text.startup+0x26a): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status