Submission #1150884

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150884		gyg	Arranging Shoes (IOI19_shoes)	C++20	15 / 100	12 ms	1864 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
#define sig signed
#define int long long
#define arr array 
#define vec vector 
const int N = 2e5 + 5;

int n;
arr<int, 2 * N> a;

// SIZE OF A IS 2 * N
int count_swaps(vec<sig> _a) {
	n = _a.size() / 2;

	int ans = n * (n - 1) / 2;
	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