Submission #1077661

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077661		kilikuma	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	14 ms	3260 KiB

shoes

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

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