제출 #301176

#제출 시각아이디문제언어결과실행 시간메모리
301176eagle30Arranging Shoes (IOI19_shoes)C++14
15 / 100
33 ms3192 KiB
#include "shoes.h" #include<bits/stdc++.h> using namespace std; long long count_swaps(vector<int> s) { long long n=s.size(); n/=2; n--; n=n*(n+1); n/=2; return n; }
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