Submission #1242532

#	Time	Username	Problem	Language	Result	Execution time	Memory
1242532		rdwabdellah	Arranging Shoes (IOI19_shoes)	C++20	15 / 100	13 ms	1864 KiB

shoes

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

ll count_swaps(vector<int> S){
    ll n = (ll)S.size()/2LL;
    ll ans = ((n-1)*n)/2LL;
    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