Submission #1000075

#	Time	Username	Problem	Language	Result	Execution time	Memory
1000075		KasymK	Arranging Shoes (IOI19_shoes)	C++17	25 / 100	14 ms	3164 KiB

shoes

#include "bits/stdc++.h"
using namespace std;
#define ll long long

ll count_swaps(vector<int> v){
    int n = (int)v.size();
    if(n == 2)
        return (v.front() < v.back() ? 0 : 1);
    n /= 2;
    n--;
    ll answer = n*1ll*(n+1)/2;
    return answer;
}

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