제출 #784133

#제출 시각아이디문제언어결과실행 시간메모리
784133AlfraganusArranging Shoes (IOI19_shoes)C++14
10 / 100
1 ms300 KiB
#include "shoes.h" // #include "grader.cpp" #include <bits/stdc++.h> using namespace std; long long count_swaps(vector<int> a) { long long n = a.size() / 2; if(n == 1)return a[0] > 0; vector<vector<int>> pos(2 * n + 1); for(int i = 2 * n - 1; i >= 0; i --) pos[a[i] + n].push_back(i); long long ans = 0; for(int i = 0; i < 2 * n; i ++){ if(a[i] != 0){ ans += pos[-a[i] + n].back() - i; if(a[i] < 0)ans --; a[pos[-a[i] + n].back()] = 0; pos[-a[i] + n].pop_back(); pos[a[i] + n].pop_back(); a[i] = 0; } } return ans; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...