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Submission #866847

# Submission time Handle Problem Language Result Execution time Memory
866847 2023-10-27T08:45:20 Z Onur_Ilgaz Gondola (IOI14_gondola) C++17
100 / 100
 58 ms 6116 KB 
#include "gondola.h"
#include <bits/stdc++.h>
#define inf INT_MAX
#define ll long long
using namespace std;

int valid(int n, int arr[])
{
  int ind = 0, mn = inf;
  set <int> st;
  for(int i = 0; i < n; i++) {
    if(arr[i] < mn) ind = i, mn = arr[i];
    if(st.count(arr[i])) return 0;
    st.insert(arr[i]);
  }
  int now = mn + 1;
  // cout<<ind<<" "<<now<<" ";
  for(int i = (ind + 1) % n; i % n != ind; i = (i + 1) % n, now++) {
    if(arr[i] <= n and arr[i] != now) {
        return 0;
    }
  }
  return 1;
}

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

int replacement(int n, int arr[], int ans[])
{
  map <int, int> mp;
  int mxi = 0, mx = 0;
  int shift = 0;
  for(int i = 0; i < n; i++) {
    mp[arr[i]] = i;
    if(arr[i] > mx) mxi = i, mx = arr[i];
    if(arr[i] <= n) {
      shift = (arr[i] - i - 1) % n;
    }
  }
  int l = mx;
  mxi = (mxi + shift + n) % n + 1;
  for(int i = n + 1; i <= l; i++) {
    int val;
    if(mp.count(i)) {
      if(i == mx) val = mxi;
      else val = (mp[i] + shift + n) % n + 1;
    }
    else {
      val = mxi;
      mxi = i;
    }
    // cout<<val<<" "<<shift<<"\n";
    ans[i - (n + 1)] = val;
  }
  return l - n;
}

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

const int mod = 1000000009;

void duzelt(int n, int arr[]) {
  vector <int> brr(n);
  int ind = 0, mn = inf;
  for(int i = 0; i < n; i++) {
    if(arr[i] < mn and arr[i] <= n) ind = i, mn = arr[i];
  }
  if(mn == inf) mn = 1;
  ind = (ind - (mn - 1) + n) % n;
  int to = 0, i;
  for(i = (ind + 1) % n; i != ind; i = (i + 1) % n, to++) {
    brr[to] = arr[(i - 1 + n) % n];
  }
  brr[to] = arr[(i - 1 + n) % n];
  for(int i = 0; i < n; i++) arr[i] = brr[i];
}

int binpow(ll x, ll y) {
  ll ret = 1;
  while(y) {
    if(y & 1) {
       ret *= x;
       ret %= mod;
    }
    x *= x;
    x %= mod;
    y /= 2;
  }
  return ret;
}

int countReplacement(int n, int arr[])
{
    if(!valid(n, arr)) return 0;
    duzelt(n, arr);
    set <int> st;
    for(int i = 0; i < n; i++) {
      if(arr[i] > n) st.insert(arr[i]);
    }
    ll prev = n, len = st.size();
    bool is = len == n;
    ll ret = 1;
    for(auto till:st) {
      ll diff = till - prev - 1;
      ret *= binpow(len, diff);
      ret %= mod;
      prev = till;
      len--;
    }
    if(is) {
      ret *= n;
      ret %= mod;
    }
    return ret;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 10 ms 2172 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 19 ms 3928 KB Output is correct
9 Correct 6 ms 1372 KB Output is correct
10 Correct 23 ms 4444 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 10 ms 2304 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 19 ms 3928 KB Output is correct
9 Correct 6 ms 1372 KB Output is correct
10 Correct 23 ms 4440 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 11 ms 2020 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 29 ms 4768 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 544 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 19 ms 4444 KB Output is correct
12 Correct 19 ms 4956 KB Output is correct
13 Correct 20 ms 2832 KB Output is correct
14 Correct 18 ms 4384 KB Output is correct
15 Correct 21 ms 2908 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 4176 KB Output is correct
10 Correct 30 ms 3416 KB Output is correct
11 Correct 11 ms 1544 KB Output is correct
12 Correct 14 ms 1780 KB Output is correct
13 Correct 3 ms 604 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 600 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 4116 KB Output is correct
10 Correct 31 ms 3436 KB Output is correct
11 Correct 11 ms 1544 KB Output is correct
12 Correct 14 ms 1792 KB Output is correct
13 Correct 4 ms 856 KB Output is correct
14 Correct 52 ms 5456 KB Output is correct
15 Correct 58 ms 6116 KB Output is correct
16 Correct 9 ms 1456 KB Output is correct
17 Correct 37 ms 4184 KB Output is correct
18 Correct 22 ms 2396 KB Output is correct