Submission #520703

#	Time	Username	Problem	Language	Result	Execution time	Memory
520703		peti1234	Arranging Shoes (IOI19_shoes)	C++17	25 / 100	19 ms	1868 KiB

shoes

#include <bits/stdc++.h>

using namespace std;



long long count_swaps(vector<int> s) {
    long long si=s.size(), n=si/2;
    // 1
    if (n==1) {
        return (s[0]<0 ? 0 : 1);
    }

    // 2
    return n*(n-1)/2;
}

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