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Submission #7304

# Submission time Handle Problem Language Result Execution time Memory
7304 2014-07-30T06:35:49 Z gs13068 Gondola (IOI14_gondola) C++
100 / 100
 28 ms 4412 KB 
#include "gondola.h"
#include <algorithm>

#define MOD 1000000009

int arr[250001];
int now[250001];

int valid(int n, int inputSeq[])
{
  int i,j;
  for(i=0;i<n;i++)if(inputSeq[i]<=n)break;
  if(i<n)for(j=0;j<n;j++)if(inputSeq[j]<=n&&(inputSeq[j]+i)%n!=(inputSeq[i]+j)%n)return 0;
  std::sort(inputSeq,inputSeq+n);
  for(i=1;i<n;i++)if(inputSeq[i-1]==inputSeq[i])return 0;
  return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  int i,j;
  for(i=1;i<=250000;i++)arr[i]=-1;
  for(i=0;i<n;i++)arr[gondolaSeq[i]]=i;
  for(i=0;i<n;i++)if(gondolaSeq[i]<=n)break;
  for(j=0;j<n;j++)now[j]=i<n?(gondolaSeq[i]+j-i+n-1)%n+1:j+1;
  j=0;
  for(i=0;i<n;i++)if(gondolaSeq[i]>j)j=gondolaSeq[i];
  for(i=n+1;i<=j;i++)
  {
    replacementSeq[i-n-1]=arr[i]>=0?now[arr[i]]:now[arr[j]];
    now[arr[i]>=0?arr[i]:arr[j]]=i;
  }
  return j-n;
}

int f(int x,int y)
{
  if(y==0)return 1;
  if(y&1)return 1LL*x*f(x,y-1)%MOD;
  x=f(x,y>>1);
  return 1LL*x*x%MOD;
}

int countReplacement(int n, int inputSeq[])
{
  if(!valid(n,inputSeq))return 0;
  int i,r=1;
  std::sort(inputSeq,inputSeq+n);
  for(i=0;i<n;i++)
  {
    if(inputSeq[i]<=n)continue;
    r=1LL*r*f(n-i,inputSeq[i]-(i>0?std::max(inputSeq[i-1],n):n)-1)%MOD;
  }
  return 1LL*r*(inputSeq[0]>n?n:1)%MOD;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 8 ms 4412 KB Output is correct
7 Correct 4 ms 4412 KB Output is correct
8 Correct 12 ms 4412 KB Output is correct
9 Correct 4 ms 4412 KB Output is correct
10 Correct 20 ms 4412 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 8 ms 4412 KB Output is correct
7 Correct 12 ms 4412 KB Output is correct
8 Correct 16 ms 4412 KB Output is correct
9 Correct 4 ms 4412 KB Output is correct
10 Correct 16 ms 4412 KB Output is correct
11 Correct 0 ms 4412 KB Output is correct
12 Correct 0 ms 4412 KB Output is correct
13 Correct 4 ms 4412 KB Output is correct
14 Correct 0 ms 4412 KB Output is correct
15 Correct 8 ms 4412 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 0 ms 4412 KB Output is correct
7 Correct 0 ms 4412 KB Output is correct
8 Correct 0 ms 4412 KB Output is correct
9 Correct 0 ms 4412 KB Output is correct
10 Correct 0 ms 4412 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 0 ms 4412 KB Output is correct
7 Correct 0 ms 4412 KB Output is correct
8 Correct 0 ms 4412 KB Output is correct
9 Correct 0 ms 4412 KB Output is correct
10 Correct 0 ms 4412 KB Output is correct
11 Correct 8 ms 4412 KB Output is correct
12 Correct 12 ms 4412 KB Output is correct
13 Correct 16 ms 4412 KB Output is correct
14 Correct 12 ms 4412 KB Output is correct
15 Correct 24 ms 4412 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 0 ms 4412 KB Output is correct
7 Correct 0 ms 4412 KB Output is correct
8 Correct 0 ms 4412 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 0 ms 4412 KB Output is correct
7 Correct 0 ms 4412 KB Output is correct
8 Correct 0 ms 4412 KB Output is correct
9 Correct 16 ms 4412 KB Output is correct
10 Correct 16 ms 4412 KB Output is correct
11 Correct 4 ms 4412 KB Output is correct
12 Correct 8 ms 4412 KB Output is correct
13 Correct 0 ms 4412 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4412 KB Output is correct
2 Correct 0 ms 4412 KB Output is correct
3 Correct 0 ms 4412 KB Output is correct
4 Correct 0 ms 4412 KB Output is correct
5 Correct 0 ms 4412 KB Output is correct
6 Correct 0 ms 4412 KB Output is correct
7 Correct 0 ms 4412 KB Output is correct
8 Correct 0 ms 4412 KB Output is correct
9 Correct 20 ms 4412 KB Output is correct
10 Correct 4 ms 4412 KB Output is correct
11 Correct 4 ms 4412 KB Output is correct
12 Correct 8 ms 4412 KB Output is correct
13 Correct 0 ms 4412 KB Output is correct
14 Correct 28 ms 4412 KB Output is correct
15 Correct 24 ms 4412 KB Output is correct
16 Correct 4 ms 4412 KB Output is correct
17 Correct 12 ms 4412 KB Output is correct
18 Correct 8 ms 4412 KB Output is correct