제출 #253448

#제출 시각아이디문제언어결과실행 시간메모리
253448ErkhemkhuuArranging Shoes (IOI19_shoes)C++17
50 / 100
1092 ms3200 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define mp make_pair #define F first #define S second const ll N = 2005; int count_swaps(vector <int> vc) { ll n, i, res, j, k; n = vc.size(); res = 0; for(i = 0; i < n; i += 2) { for(j = i + 1; j < n; j++) { if(-vc[i] == vc[j]) { for(k = j; k >= i + 2; k--) { swap(vc[k], vc[k - 1]); res++; } break; } } res += (!(abs(vc[i]) == abs(vc[i + 1]) && vc[i] < vc[i + 1])); } return res; }
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