Submission #813671

#	Time	Username	Problem	Language	Result	Execution time	Memory
813671		math_rabbit_1028	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	19 ms	1876 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n;

long long count_swaps(std::vector<int> s) {
	n = s.size()/2;
	return (ll)n * (n - 1) / 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