import java.io.*;
class QuickSort
{
int lb,ub,a[];
QuickSort(int n)
{
a=new int[n];
}
void quick(int lb,int ub)
{ int i;
int j;
boolean flag;
int key;
if(lb<ub)
{
i=lb;
j=ub+1;
flag=true;
key=a[lb];
while(flag)
{
i=i+1;
//while( key>a[i] )
for(int z=i;i<ub;i++)
{
if(key<a[i])
break;
}
j=j-1;
//while(key<a[j] )
for(int z=j;i>=lb;i--)
{
if(key>a[i])
break;
}
if(i<j )
{
int t=a[i];
a[i]=a[j];
a[j]=t;
}
else
{
flag=false;
}
} //putting lb to I th position
int t=a[i];
a[i]=a[lb];
a[lb]=t;
quick(lb,j-1);
quick(j+1,ub);
}
}
void input() throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<a.length;i++)
{
a[i]=Integer.parseInt(br.readLine());
}
}
void display()
{
System.out.println("output is:");
for(int i=0;i<a.length;i++)
{
System.out.println(a[i]);
}
}
}
class QuickSortMain
{
public static void main(String args[]) throws IOException
{
QuickSort q=new QuickSort(7);
q.input();
q.quick(0,7);
q.display();
}
}
class QuickSort
{
int lb,ub,a[];
QuickSort(int n)
{
a=new int[n];
}
void quick(int lb,int ub)
{ int i;
int j;
boolean flag;
int key;
if(lb<ub)
{
i=lb;
j=ub+1;
flag=true;
key=a[lb];
while(flag)
{
i=i+1;
//while( key>a[i] )
for(int z=i;i<ub;i++)
{
if(key<a[i])
break;
}
j=j-1;
//while(key<a[j] )
for(int z=j;i>=lb;i--)
{
if(key>a[i])
break;
}
if(i<j )
{
int t=a[i];
a[i]=a[j];
a[j]=t;
}
else
{
flag=false;
}
} //putting lb to I th position
int t=a[i];
a[i]=a[lb];
a[lb]=t;
quick(lb,j-1);
quick(j+1,ub);
}
}
void input() throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<a.length;i++)
{
a[i]=Integer.parseInt(br.readLine());
}
}
void display()
{
System.out.println("output is:");
for(int i=0;i<a.length;i++)
{
System.out.println(a[i]);
}
}
}
class QuickSortMain
{
public static void main(String args[]) throws IOException
{
QuickSort q=new QuickSort(7);
q.input();
q.quick(0,7);
q.display();
}
}
No comments:
Post a Comment