Submission #1020012

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020012		abdelhakim	Arranging Shoes (IOI19_shoes)	C++14	25 / 100	24 ms	3260 KiB

shoes

#include <bits/stdc++.h>
#define mod 1000000007LL
#define inf 1e17
#define ll long long
using namespace std;

void printvec(vector<ll> vec)
{
    for (auto &&e : vec)
    {
        cout << e << ' ';
    }
    cout << endl;
}

ll count_swaps(vector<int> s)
{
    ll n = s.size()/2;
    if(n == 1) return s[0] > s[1];
    else return n*(n-1)/2;
}
// int main()
// {
//     cout << count_swaps({-1,1}) << endl;
// }

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