Submission #953673

#	Time	Username	Problem	Language	Result	Execution time	Memory
953673		emad234	Gondola (IOI14_gondola)	C++17	25 / 100	8 ms	3420 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define pii pair<ll, ll>
const ll mod = 1e9 + 9;
const ll mxN = 1e6 + 5;
using namespace std;
int realS[mxN];
int valid(int n, int inputSeq[])
{
  vector<bool> vis(250000 + 3);
  int st = 0;
  int val = 1;
  for (int i = 0; i < n; i++)
  {
    if (vis[inputSeq[i]])
      return 0;
    vis[inputSeq[i]] = 1;
    if (inputSeq[i] <= n)
    {
      st = i;
      val = inputSeq[i];
    }
  }
  int og = st;
  while (1)
  {
    st++;
    val++;
    if (st >= n)
      st = 0;
    if (val > n)
      val = 1;
    if (st == og)
      break;
    if (inputSeq[st] != val && inputSeq[st] <= n)
      return 0;
    realS[inputSeq[st]] = val;
  }
  return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  set<int> s;
  int mx = 0;
  valid(n, gondolaSeq);
  for (int i = 0; i < n; i++)
    mx = max(mx, gondolaSeq[i]);
  for (int i = 1; i <= mx; i++)
    s.insert(i);
  for (int i = 0; i < n; i++)
    s.erase(gondolaSeq[i]);
  int id = 0;
  for (int i = n + 1; i <= mx; i++)
  {
    if (realS[i] == i)
      continue;
    // cout<<i<<' '<<realS[i]<<'\n';
    if (!realS[i])
    {
      replacementSeq[id] = realS[mx];
      realS[mx] = i;
    }
    else
      replacementSeq[id] = realS[i];
    id++;
  }
  return id;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10