Submission #832288

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
832288	2023-08-21 08:27:55	MadokaMagicaFan	Ancient Books (IOI17_books)	C++14	50 / 100	105 ms	24624 KiB

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#include "bits/stdc++.h"
using namespace std;
using ll = long long;
#define sz(v) ((int)v.size())
#define pb push_back
const int N = 1e6;
bitset<N> v;
ll minimum_walk(vector<int> p, int s) {
  /* assumes s = 0 */
  ll ans = 0;
  int n = sz(p);
  v = 0;
  for (int i = 0; i < n; ++i)
    ans += (ll)abs(i - p[i]);
  vector<array<ll,2>> rn, newr;
  for (int i = 0; i < n; ++i) {
    int l, r, x;
    l = r = i;
    if (v[i]) continue;
    x = i;
    while (!v[x]) {
      v[x] = 1;
      l = min(l, x);
      r = max(r, x);
      x = p[x];
    }
    if (l != r)
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 28 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30