Submission #1144489

#	Time	Username	Problem	Language	Result	Execution time	Memory
1144489		crispxx	Arranging Shoes (IOI19_shoes)	C++20	15 / 100	12 ms	1864 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h"

// #include "grader.cpp"

using namespace std;

#define all(x) x.begin(), x.end()
#define pb push_back
#define nl '\n'

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