Submission #1278986

#	Time	Username	Problem	Language	Result	Execution time	Memory
1278986		coderg300711	Arranging Shoes (IOI19_shoes)	C++20	15 / 100	12 ms	1972 KiB

shoes

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

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

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