SHORTING USING MERGE SORT
DATA Structure
BCA Third Semester
#include<stdio.h>
#include<conio.h>
void merge(int [],int ,int ,int );
void break_a(int [],int ,int );
int main()
{
int arr[30];
int i,size;
clrscr();
printf(“\n\t——- Merge sorting method ——-\n\n”);
printf(“Enter total no. of elements : “);
scanf(“%d”,&size);
for(i=0; i<size; i++)
{
printf(“Enter %d element : “,i+1);
scanf(“%d”,&arr[i]);
}
break_a(arr,0,size-1);
printf(“\n\t——- Merge sorted elements ——-\n\n”);
for(i=0; i<size; i++)
printf(” %d\n”,arr[i]);
getch();
return 0;
}
void break_a(int arr[],int min,int max)
{
int mid;
if(min<max)
{
mid=(min+max)/2;
break_a(arr,min,mid);
break_a(arr,mid+1,max);
merge(arr,min,mid,max);
}
}
void merge(int arr[],int min,int mid,int max)
{
int tmp[30];
int i,j,k,m;
j=min;
m=mid+1;
for(i=min; j<=mid && m<=max ; i++)
{
if(arr[j]<=arr[m])
{
tmp[i]=arr[j];
j++;
}
else
{
tmp[i]=arr[m];
m++;
}
}
if(j>mid)
{
for(k=m; k<=max; k++)
{
tmp[i]=arr[k];
i++;
}
}
else
{
for(k=j; k<=mid; k++)
{
tmp[i]=arr[k];
i++;
}
}
for(k=min; k<=max; k++)
arr[k]=tmp[k];
}
OUTPUT
——- Merge sorting method ——-
Enter total no. of elements : 5
Enter 1 element : 40
Enter 2 element : 10
Enter 3 element : 30
Enter 4 element : 60
Enter 5 element : 20
——- Merge sorted elements ——-
10
20
30
40
60
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