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Submission #54593

# Submission time Handle Problem Language Result Execution time Memory
54593 2018-07-04T07:32:40 Z win11905 Gondola (IOI14_gondola) C++11
75 / 100
 77 ms 9404 KB 
#include <bits/stdc++.h>
#define long long long
#include "gondola.h"
using namespace std;

const long M = 1e9+9;

int valid(int n, int inputSeq[]) {
  map<int, int> M;
  for(int i = 0, st = -n-1; i < n; ++i, ++st) {
    M[inputSeq[i]]++;
    if(st == n+1) st = 1;
    if(inputSeq[i] <= n) {
      if(st < 0) st = inputSeq[i];
      else if(st != inputSeq[i]) return 0;
    }
  }
  for(auto x : M) if(x.second > 1) return 0;
  return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
  int sz = 0, shift = 0;
  for(int i = 0; i < n; ++i) if(gondolaSeq[i] <= n) shift = i - gondolaSeq[i] + 1;
  vector<int> ret(n);
  for(int i = 0; i < n; ++i) ret[i] = gondolaSeq[(i + shift + n) % n];
  int pos = max_element(ret.begin(), ret.end()) - ret.begin() + 1;
  int mx = *max_element(ret.begin(), ret.end());
  map<int, int> M;
  for(int i = 0; i < n; ++i) if(ret[i] > n) M[ret[i]] = i+1;
  for(int i = n+1; i <= mx; ++i) {
    if(M[i] == 0 || i == mx) replacementSeq[sz++] = pos, pos = i;
    else replacementSeq[sz++] = M[i];
  }
  return sz;
}

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

int powMod(int a, int b) {
  int val = 1;
  while(b) {
    if(b & 1) val = (1ll * val * a) % M;
    a = (1ll * a * a) % M;
    b >>= 1;
  }
  return val;
}

int countReplacement(int n, int inputSeq[]) {
  if(!valid(n, inputSeq)) return 0;
  vector<int> V; V.emplace_back(n);
  for(int i = 0; i < n; ++i) if(inputSeq[i] > n) V.emplace_back(inputSeq[i]);
  if(V.size() == 1) return 1;
  long ans = 1; int s = V.size();
  sort(V.begin(), V.end());
  for(int i = 1; i < s; ++i) ans = (ans * powMod(s - i, V[i] - V[i-1] - 1)) % M;
  return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 2 ms 484 KB Output is correct
4 Correct 2 ms 484 KB Output is correct
5 Correct 2 ms 528 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 536 KB Output is correct
2 Correct 2 ms 544 KB Output is correct
3 Correct 2 ms 560 KB Output is correct
4 Correct 2 ms 560 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 15 ms 2388 KB Output is correct
7 Correct 13 ms 2388 KB Output is correct
8 Correct 30 ms 4180 KB Output is correct
9 Correct 11 ms 4180 KB Output is correct
10 Correct 40 ms 4824 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4824 KB Output is correct
2 Correct 2 ms 4824 KB Output is correct
3 Correct 2 ms 4824 KB Output is correct
4 Correct 2 ms 4824 KB Output is correct
5 Correct 2 ms 4824 KB Output is correct
6 Correct 15 ms 4824 KB Output is correct
7 Correct 13 ms 4824 KB Output is correct
8 Correct 29 ms 4824 KB Output is correct
9 Correct 9 ms 4824 KB Output is correct
10 Correct 35 ms 4860 KB Output is correct
11 Correct 2 ms 4860 KB Output is correct
12 Correct 2 ms 4860 KB Output is correct
13 Correct 7 ms 4860 KB Output is correct
14 Correct 2 ms 4860 KB Output is correct
15 Correct 13 ms 4860 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4860 KB Output is correct
2 Correct 2 ms 4860 KB Output is correct
3 Correct 2 ms 4860 KB Output is correct
4 Correct 2 ms 4860 KB Output is correct
5 Correct 2 ms 4860 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4860 KB Output is correct
2 Correct 2 ms 4860 KB Output is correct
3 Correct 2 ms 4860 KB Output is correct
4 Correct 2 ms 4860 KB Output is correct
5 Correct 2 ms 4860 KB Output is correct
6 Correct 2 ms 4860 KB Output is correct
7 Correct 2 ms 4860 KB Output is correct
8 Correct 3 ms 4860 KB Output is correct
9 Correct 3 ms 4860 KB Output is correct
10 Correct 4 ms 4860 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4860 KB Output is correct
2 Correct 2 ms 4860 KB Output is correct
3 Correct 2 ms 4860 KB Output is correct
4 Correct 2 ms 4860 KB Output is correct
5 Correct 2 ms 4860 KB Output is correct
6 Correct 2 ms 4860 KB Output is correct
7 Correct 2 ms 4860 KB Output is correct
8 Correct 4 ms 4860 KB Output is correct
9 Correct 4 ms 4860 KB Output is correct
10 Correct 3 ms 4860 KB Output is correct
11 Correct 12 ms 4860 KB Output is correct
12 Correct 13 ms 4860 KB Output is correct
13 Correct 45 ms 4860 KB Output is correct
14 Correct 13 ms 4860 KB Output is correct
15 Correct 74 ms 9404 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9404 KB Output is correct
2 Correct 2 ms 9404 KB Output is correct
3 Correct 2 ms 9404 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9404 KB Output is correct
2 Correct 2 ms 9404 KB Output is correct
3 Correct 2 ms 9404 KB Output is correct
4 Correct 2 ms 9404 KB Output is correct
5 Correct 2 ms 9404 KB Output is correct
6 Correct 2 ms 9404 KB Output is correct
7 Correct 2 ms 9404 KB Output is correct
8 Correct 2 ms 9404 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9404 KB Output is correct
2 Correct 2 ms 9404 KB Output is correct
3 Correct 2 ms 9404 KB Output is correct
4 Correct 2 ms 9404 KB Output is correct
5 Correct 2 ms 9404 KB Output is correct
6 Correct 3 ms 9404 KB Output is correct
7 Correct 2 ms 9404 KB Output is correct
8 Correct 2 ms 9404 KB Output is correct
9 Correct 63 ms 9404 KB Output is correct
10 Correct 61 ms 9404 KB Output is correct
11 Correct 17 ms 9404 KB Output is correct
12 Correct 19 ms 9404 KB Output is correct
13 Incorrect 5 ms 9404 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9404 KB Output is correct
2 Correct 2 ms 9404 KB Output is correct
3 Correct 2 ms 9404 KB Output is correct
4 Correct 2 ms 9404 KB Output is correct
5 Correct 2 ms 9404 KB Output is correct
6 Correct 3 ms 9404 KB Output is correct
7 Correct 3 ms 9404 KB Output is correct
8 Correct 3 ms 9404 KB Output is correct
9 Correct 77 ms 9404 KB Output is correct
10 Correct 43 ms 9404 KB Output is correct
11 Correct 15 ms 9404 KB Output is correct
12 Correct 25 ms 9404 KB Output is correct
13 Incorrect 6 ms 9404 KB Output isn't correct
14 Halted 0 ms 0 KB -