제출 #583415

#제출 시각아이디문제언어결과실행 시간메모리
583415InternetPerson10고대 책들 (IOI17_books)C++17
0 / 100
1 ms304 KiB
#include "books.h" #include <bits/stdc++.h> typedef long long ll; using namespace std; long long minimum_walk(vector<int> p, int s) { ll ans = 0; int n = p.size(); int best = 0; vector<bool> taken(n, false); for(int i = 0; i < n; i++) { if(best == i - 1) { ans += 2; } if(!taken[i]) { int x = i; while(!taken[x]) { best = max(x, best); taken[x] = true; ans += abs(x - p[x]); x = p[x]; } } } return ans; }
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