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Submission #127774

# Submission time Handle Problem Language Result Execution time Memory
127774 2019-07-10T05:55:44 Z tinjyu Gondola (IOI14_gondola) C++14
55 / 100
 25 ms 2680 KB 
#include "gondola.h"
#include <iostream>
using namespace std;
int ans[1000005];
int a[100005],b[100005],n;
int qs(int s,int e)
{
	if(s>=e)return 0;
	int l=s,r=e,mid=(a[l]+a[r])/2;
	while(l<=r)
	{
		while(a[l]<mid)l++;
		while(a[r]>mid)r--;
		if(l<=r)
		{
			swap(a[l],a[r]);
			swap(b[l],b[r]);
			l++;
			r--;
		}
	}
	qs(s,r);
	qs(l,e);
}
int valid(int N, int a[])
{
	n=N;
	int tmp=-1,mi=500005,tag[500005];
	for(int i=0;i<=500000;i++)tag[i]=0;
	for(int i=0;i<n;i++)
	{
		if(tag[a[i]]==1)return 0;
		tag[a[i]]++;
	}
	for(int i=0;i<n;i++)
	if(a[i]<=n && a[i]<mi)
	{
		tmp=i;
		mi=a[i];
	}
	if(tmp==-1)return 1;
	int p=n-1,i=tmp,t=mi;
	while(p--)
	{
		i++;
		i%=n;
		t++;
		if(a[i]<=n && a[i]!=t)return 0;
	}
 
	return 1;
}
 
 
//----------------------
 
int replacement(int N, int gondolaSeq[], int replacementSeq[])
{
	n=N;
	int t=-1;
	for(int i=0;i<n;i++)a[i]=gondolaSeq[i];
	for(int i=0;i<n;i++)
	{
		if(a[i]<=n)
		{
			t=i;
			break;
		}
	}
	if(t==-1)for(int i=0;i<n;i++)b[i]=i+1;
	else
	{
		b[t]=a[t];
		int now=a[t],i=t;
		int p=n-1;
		while(p--)
		{
			i++;
			i%=n;
			now=now%n+1;
			b[i]=now;
		}
	}
	//for(int i=0;i<n;i++)cout<<a[i]<<" "<<b[i]<<endl;
	qs(0,n-1);
	//for(int i=0;i<n;i++)cout<<a[i]<<" "<<b[i]<<endl;
	int ans1=0,x=n+1;
	for(int i=0;i<n;i++)
	{
		while(a[i]!=b[i])
		{
			
			replacementSeq[ans1]=b[i];
			b[i]=x;
			ans1++;
			x++;
		}
	}
  	return ans1;
}
 
//----------------------
 
int countReplacement(int N, int inputSeq[])
{
	if(valid(N,inputSeq)==0)return 0;
	n=N;
	int t=-1;
	for(int i=0;i<n;i++)a[i]=inputSeq[i];
	for(int i=0;i<n;i++)
	{
		if(a[i]<=n)
		{
			t=i;
			break;
		}
	}
	if(t==-1)for(int i=0;i<n;i++)b[i]=i+1;
	else
	{
		b[t]=a[t];
		int now=a[t],i=t;
		int p=n-1;
		while(p--)
		{
			i++;
			i%=n;
			now=now%n+1;
			b[i]=now;
		}
	}
	//for(int i=0;i<n;i++)cout<<a[i]<<" "<<b[i]<<endl;
	qs(0,n-1);
	//for(int i=0;i<n;i++)cout<<a[i]<<" "<<b[i]<<endl;
	int ans1=1,x=n+1,tmp;
	
	for(int i=0;i<n;i++)
	{
		tmp=0;
		while(a[i]!=b[i])
		{
			
			b[i]=x;
			tmp++;
			x++;
		}
		if(tmp!=0)
		{
			ans[0]++;
			ans[ans[0]]=tmp;
		}
	}
	for(int i=1;i<=ans[0];i++)
	{
		for(int j=1;j<=ans[i];j++)ans1=(ans1*(ans[0]-i+1))%1000000009;
	}
  	return max(1,ans1);
}

Compilation message

gondola.cpp: In function 'int qs(int, int)':
gondola.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 4 ms 2296 KB Output is correct
3 Correct 4 ms 2296 KB Output is correct
4 Correct 4 ms 2296 KB Output is correct
5 Correct 3 ms 2296 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 4 ms 2296 KB Output is correct
3 Correct 3 ms 2296 KB Output is correct
4 Correct 4 ms 2300 KB Output is correct
5 Correct 4 ms 2296 KB Output is correct
6 Correct 9 ms 2428 KB Output is correct
7 Correct 15 ms 2680 KB Output is correct
8 Correct 13 ms 2552 KB Output is correct
9 Correct 7 ms 2424 KB Output is correct
10 Correct 15 ms 2680 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 3 ms 2296 KB Output is correct
3 Correct 4 ms 2300 KB Output is correct
4 Correct 4 ms 2296 KB Output is correct
5 Correct 4 ms 2296 KB Output is correct
6 Correct 9 ms 2424 KB Output is correct
7 Correct 15 ms 2552 KB Output is correct
8 Correct 13 ms 2552 KB Output is correct
9 Correct 7 ms 2424 KB Output is correct
10 Correct 16 ms 2680 KB Output is correct
11 Correct 4 ms 2296 KB Output is correct
12 Correct 4 ms 2216 KB Output is correct
13 Correct 9 ms 2424 KB Output is correct
14 Correct 3 ms 2296 KB Output is correct
15 Correct 16 ms 2680 KB Output is correct

Subtask #4
5.0 / 5.0

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

Subtask #5
10.0 / 10.0

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

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 4 ms 292 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 14 ms 1276 KB Output is correct
12 Correct 16 ms 1528 KB Output is correct
13 Correct 19 ms 1400 KB Output is correct
14 Correct 14 ms 1272 KB Output is correct
15 Correct 25 ms 2296 KB Output is correct

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 2296 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 2296 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 2296 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 2296 KB Output isn't correct
2 Halted 0 ms 0 KB -