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Submission #999222

# Submission time Handle Problem Language Result Execution time Memory
999222 2024-06-15T08:21:08 Z Alfraganus Gondola (IOI14_gondola) C++17
75 / 100
 33 ms 4576 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;

int valid(int n, int a[]){
  vector<int> p;
  for(int i = 0; i < n; i ++){
    if(a[i] == 1){
      for(int j = i; j < n; j ++)
        p.push_back(a[j]);
      for(int j = 0; j < i; j ++)
        p.push_back(a[j]);
    }
  }
  if(p.size() == 0)
    return 0;
  for(int i = 0; i < n; i ++){
    if(p[i] != i + 1){
      return 0;
    }
  }
  return 1;
}

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

int replacement(int n, int a[], int replacementSeq[])
{
  int index = 0;
  for(int i = 0; i < n; i ++){
    if(a[i] <= n){
      index = (i - a[i] + 1 + n) % n;
      break;
    }
  }
  map<int, int> mp;
  int mx = 0;
  for(int i = index; i < n; i ++)
    if(a[i] > n)
      mp[a[i]] = i - index + 1, mx = max(mx, a[i]);
  for(int i = 0; i < index; i ++)
    if(a[i] > n)
      mp[a[i]] = i + n - index + 1, mx = max(mx, a[i]);
  if(mp.size() == 0)
    return 0;
  int ans = 0;
  for(int i = n + 1; i <= mx; i ++){
    if(mp.begin() -> first == i){
      replacementSeq[ans] = mp[i];
      mp.erase(mp.begin());
      ans ++;
    }
    else{
      replacementSeq[ans] = mp.begin() -> second;
      mp.begin() -> second = i;
      ans ++;
    }
  }
  return ans;
}

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

int countReplacement(int n, int a[]){
  map<int, int> cnt;
  for(int i = 0; i < n; i ++){
    cnt[a[i]] ++;
    if(cnt[a[i]] == 2)
      return 0;
  }
  int index = 0;
  for(int i = 0; i < n; i ++){
    if(a[i] <= n){
      index = (i - a[i] + 1 + n) % n;
      break;
    }
  }
  for(int i = index; i < n; i ++){
    if(a[i] <= n and a[i] != i - index + 1){
      return 0;
    }
  }
  for(int i = 0; i < index; i ++){
    if(a[i] <= n and a[i] != i + n - index + 1){
      return 0;
    }
  }
  long long ans = 1, mod = 1e9 + 9;
  vector<int> p;
  for(int i = 0; i < n; i ++)
    if(a[i] > n)
      p.push_back(a[i]);
  sort(p.begin(), p.end(), greater<int> ());
  auto binpow = [&](long long a, int n){
    long long res = 1;
    while(n){
      if(n & 1)
        res = (res * a) % mod;
      a = (a * a) % mod;
      n >>= 1;
    }
    return res;
  };
  long long x = (int)p.size();
  for(int i = (int)p.size() - 1; i >= 0; i --){
    ans = (ans * binpow(x, p[i] - (i + 1 == (int)p.size() ? n : p[i + 1]) - 1)) % mod;
    x --;
  }
  int res = ans;
  return res;
}

Subtask #1
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 344 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 3 ms 980 KB Output is correct
7 Correct 6 ms 1240 KB Output is correct
8 Correct 5 ms 1240 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 5 ms 1300 KB Output is correct

Subtask #3
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 348 KB Output is correct
6 Correct 2 ms 860 KB Output is correct
7 Correct 7 ms 1240 KB Output is correct
8 Correct 5 ms 1240 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 7 ms 1236 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 3 ms 412 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 6 ms 1240 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 356 KB Output is correct
4 Correct 1 ms 344 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 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 360 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 416 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 5 ms 604 KB Output is correct
12 Correct 6 ms 604 KB Output is correct
13 Correct 14 ms 2488 KB Output is correct
14 Correct 5 ms 604 KB Output is correct
15 Correct 15 ms 2940 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 1 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 1 ms 348 KB Output is correct
3 Correct 1 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
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 1 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 32 ms 4576 KB Output is correct
10 Correct 25 ms 3736 KB Output is correct
11 Correct 9 ms 1628 KB Output is correct
12 Correct 12 ms 2004 KB Output is correct
13 Incorrect 4 ms 604 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #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 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
9 Correct 33 ms 4444 KB Output is correct
10 Correct 25 ms 3928 KB Output is correct
11 Correct 10 ms 1624 KB Output is correct
12 Correct 11 ms 1820 KB Output is correct
13 Incorrect 2 ms 604 KB Output isn't correct
14 Halted 0 ms 0 KB -