Submission #240813

#	Time	Username	Problem	Language	Result	Execution time	Memory
240813		ikura355	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	34 ms	3192 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;

#define ll long long

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