제출 #590880

#제출 시각아이디문제언어결과실행 시간메모리
590880someoneArranging Shoes (IOI19_shoes)C++14
50 / 100
1090 ms3252 KiB
#include "shoes.h" #include <bits/stdc++.h> using namespace std; long long count_swaps(std::vector<int> s) { int n = (int)s.size(); long long sum = 0; for(int i = 0; i < n; i+=2) { int search = -s[i]; for(int j = i+1; j < n; j++) { if(s[j] == search) { if(search < 0) sum += j-i; else sum += j-i-1; for(int k = j; k > i; k--) swap(s[k], s[k-1]); j = n; } } } return sum; }
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