Submission #147520

#	Time	Username	Problem	Language	Result	Execution time	Memory
147520		ioilolcom	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	31 ms	2040 KiB

shoes

#include<bits/stdc++.h>
using namespace std;
#include "shoes.h"
 
long long count_swaps(std::vector<int> s) {
	long long n = (int)s.size()/2;
 
	
	long long swaps = n*(n-1)/2;
   return swaps;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15