Submission #770604

#	Time	Username	Problem	Language	Result	Execution time	Memory
770604		teamariaa	Arranging Shoes (IOI19_shoes)	C++17	25 / 100	20 ms	3128 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;

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

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:9:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
    9 |     if(n == 1)
      |       ^

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