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merge.java
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import java.util.*;
public class Test {
static void merge(int a[],int l,int m,int r)
{
int n1=m-l+1;
int n2=r-m;
int lt[]=new int[n1];
int rt[]=new int[n2];
for(int i=0;i<n1;i++)
lt[i]=a[l+i];
for (int j=0; j<n2; ++j)
rt[j]=a[m+1+j];
int i=0,j=0;
int k=l;
while(i<n1&&j<n2)
{
if(lt[i]<=rt[j])
{
a[k]=lt[i];
i++;
k++;
}
else
{
a[k]=rt[j];
k++;
j++;
}
}
while(i<n1)
{
a[k]=lt[i];
k++;
i++;
}
while(j<n2)
{
a[k]=rt[j];
k++;
j++;
}
}
static void sort(int a[],int l,int r)
{
if(l<r)
{
int m=(l+r)/2;
sort(a,l,m);
sort(a,m+1,r);
merge(a,l,m,r);
}
}
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int a[]=new int[n];
for(int i=0;i<n;i++)
a[i]=sc.nextInt();
sort(a,0,n-1);
for(int i=0;i<n;i++)
System.out.print(a[i]+" ");
}
}