제출 #1242527

#제출 시각아이디문제언어결과실행 시간메모리
1242527rdwabdellahArranging Shoes (IOI19_shoes)C++20
0 / 100
0 ms324 KiB
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll count_swaps(vector<int> S){ ll n = (ll)S.size(); ll ans = ((n-1)*n)/2LL; return ans; }
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