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Submission #204658

# Submission time Handle Problem Language Result Execution time Memory
204658 2020-02-26T13:11:08 Z a_player Gondola (IOI14_gondola) C++14
100 / 100
 46 ms 4484 KB 
#include <bits/stdc++.h>
#include "gondola.h"
#define f first
#define s second
#define mp make_pair
#define rep replacementSeq
#define MOD 1000000009

using namespace std;

typedef long long ll;
const int MAXN = 1e6+5;

unordered_map<int,int> v;

int valid(int n, int inputSeq[])
{
    for(int i=0;i<n;i++){
        if(v[inputSeq[i]])return 0;
        v[inputSeq[i]]=1;
    }
    int mini=min_element(inputSeq,inputSeq+n)-inputSeq;
    int ans=1;
    if(inputSeq[mini]>n)return 1;
    int i=(mini-inputSeq[mini]+1+n)%n;
    for(int j=0;j<n-1;j++){
        if(inputSeq[(i+j)%n]>n||inputSeq[(i+j+1)%n]>n)continue;
        ans*=(inputSeq[(i+j)%n]+1==inputSeq[(i+j+1)%n]);
    }
    
    return ans;
}

//----------------------
vector<pair<int,int> > a;
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  int ind=-1;
  for(int i=0;i<n;i++)if(gondolaSeq[i]<=n)ind=i;
  if(ind==-1){
    for(int j=0;j<n;j++)a.push_back(mp(gondolaSeq[j],j+1));
  }else{
  ind=(ind-gondolaSeq[ind]+1+n)%n;
  for(int j=0;j<n;j++)a.push_back(mp(gondolaSeq[(ind+j)%n],j+1));
  }
  sort(a.begin(),a.end());
  int id=0;
  int k=n;
  for(pair<int,int> x:a){
    if(x.f==x.s)continue;
      rep[id++]=x.s;
      for(k+=1;k<x.f;k++)rep[id++]=k;
  }
  return id;
}

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

ll pot(int n, int a){
  if(n==0)return 1;
  ll h=pot(n/2,a)%MOD;
  h=(h*h)%MOD;
  if(n%2)h=(h*(ll)a)%MOD;
  return h;
}

int countReplacement(int n, int inputSeq[])
{
  if(!valid(n,inputSeq))return 0;
  ll ans=1;
  sort(inputSeq,inputSeq+n);
  if(inputSeq[0]>n)ans=n;
  int k=n;
  for(int i=0;i<n;i++){
      if(inputSeq[i]<=k)continue;
      ans=(ans*pot(inputSeq[i]-k-1,n-i))%MOD;
      k=inputSeq[i];
  }
  return ans%MOD;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 14 ms 2088 KB Output is correct
7 Correct 17 ms 632 KB Output is correct
8 Correct 22 ms 3716 KB Output is correct
9 Correct 11 ms 1400 KB Output is correct
10 Correct 25 ms 4104 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 14 ms 2088 KB Output is correct
7 Correct 18 ms 760 KB Output is correct
8 Correct 23 ms 3720 KB Output is correct
9 Correct 10 ms 1272 KB Output is correct
10 Correct 25 ms 4104 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 16 ms 1960 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 32 ms 4364 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 19 ms 1776 KB Output is correct
12 Correct 20 ms 1776 KB Output is correct
13 Correct 21 ms 1520 KB Output is correct
14 Correct 18 ms 1776 KB Output is correct
15 Correct 25 ms 2420 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 35 ms 3716 KB Output is correct
10 Correct 29 ms 3496 KB Output is correct
11 Correct 13 ms 1400 KB Output is correct
12 Correct 16 ms 1912 KB Output is correct
13 Correct 7 ms 632 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 37 ms 3720 KB Output is correct
10 Correct 30 ms 3496 KB Output is correct
11 Correct 13 ms 1400 KB Output is correct
12 Correct 15 ms 1912 KB Output is correct
13 Correct 7 ms 632 KB Output is correct
14 Correct 42 ms 4104 KB Output is correct
15 Correct 46 ms 4484 KB Output is correct
16 Correct 12 ms 1144 KB Output is correct
17 Correct 34 ms 3496 KB Output is correct
18 Correct 20 ms 1960 KB Output is correct