Submission #691279

#	Time	Username	Problem	Language	Result	Execution time	Memory
691279		zeroesandones	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	19 ms	3120 KiB

shoes

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

using ll = long long;
using vi = vector<long long>;

#define pb emplace_back

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

	ll ans = 0;
	for(int i = 1; i <= n; ++i) {
		ans += n - i;
	}

	return ans;
}

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