제출 #1291914

#제출 시각아이디문제언어결과실행 시간메모리
1291914lukaye_19Arranging Shoes (IOI19_shoes)C++20
15 / 100
13 ms1968 KiB
#include <bits/stdc++.h> using namespace std; long long count_swaps(vector<int>shoes) { long long n = shoes.size() / 2; return (n * (n - 1)) / 2; }
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