제출 #414652

#제출 시각아이디문제언어결과실행 시간메모리
414652hibye1217Arranging Shoes (IOI19_shoes)C++17
50 / 100
1080 ms3112 KiB
#ifndef NOTSUBMIT #include "shoes.h" using namespace std; #endif int psh(std::vector<int>& s, int st, int ed){ int res = 0; for (int j = st; j > ed; j--){ swap(s[j], s[j-1]); res += 1; } return res; } long long count_swaps(std::vector<int> s) { int n = s.size(); int ans = 0; for (int i = 0; i < n; i += 2){ int p = 0; for (int j = i; j < n; j++){ if (s[j] == -s[i]){ p = j; break; } } ans += psh(s, p, i+1); if (s[i] > s[i+1]){ swap(s[i], s[i+1]); ans += 1; } } return ans; }
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