제출 #1011662

#제출 시각아이디문제언어결과실행 시간메모리
1011662u_suck_oArranging Shoes (IOI19_shoes)C++17
0 / 100
14 ms3164 KiB
#include "bits/stdc++.h"
#include "shoes.h"

long long count_swaps(std::vector<int> s) {
    int n = s.size()/2;
    return n*(n-1)/2;
}
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