C Program To Merge Two Arrays

C program to merge two arrays; Through this tutorial, we will learn how to merge two arrays using standard method and function in c programs.

Programs To Merge Two Arrays in C

To merge two arrays using standard method and function in c programs:

• C Program To Merge Two Arrays using Standard Method
• C Program To Merge Two Arrays using Function

C Program To Merge Two Arrays using Standard Method

#include <stdio.h>

print(int *a,int n)
 {
    int i;



    for(i=0; i<n; i++)
    {

        	printf("%d  ",a[i]);


    }

 }


int main()
{
    int a[10000],b[10000],c[20000],i,n1,n2 ;

    printf("Enter size of the 1st array : ");
    scanf("%d", &n1);
    printf("Enter elements in array : ");
    for(i=0; i<n1; i++)
    {
        scanf("%d",&a[i]);
    }
    printf("Enter size of the 2nd array : ");
    scanf("%d",&n2);

    printf("Enter elements in array : ");
    for(i=0; i<n2; i++)
    {
        scanf("%d",&b[i]);
    }

    for(i=0; i<n1+n2; i++)
    {
       if(i<n1)
          c[i]=a[i];
          else
            c[i]=b[i-n1];

    }

    printf(" 1st array :\n");

    print(a,n1);

	printf("\n2nd array :\n");

    print(b,n2);

	printf("\nMerged array :\n");

    print(c,n1+n2);

    return 0;
}

The output of the above c program; as follows:

Enter size of the 1st array : 5
Enter elements in array : 1 2 3 4 5
Enter size of the 2nd array : 3
Enter elements in array : 6 7 8
1st array :
1  2  3  4  5
2nd array :
6  7  8
Merged array :
1  2  3  4  5  6  7  8  

C Program To Merge Two Arrays using Function

#include <stdio.h>

merge(int *a,int *b,int *c,int n1,int n2)
{ int i;

    for(i=0; i<n1+n2; i++)
    {
         if(i<n1)
          c[i]=a[i];
          else
            c[i]=b[i-n1];
	}





 }

print(int *a,int n)
 {
    int i;



    for(i=0; i<n; i++)
    {

        	printf("%d  ",a[i]);


    }

 }

int main()
{
    int a[10000],b[10000],c[20000],i,n1,n2,n ;

    printf("Enter size of the 1st array : ");
    scanf("%d", &n1);
    printf("Enter elements in array : ");
    for(i=0; i<n1; i++)
    {
        scanf("%d",&a[i]);
    }
    printf("Enter size of the 2nd array : ");
    scanf("%d",&n2);

    printf("Enter elements in array : ");
    for(i=0; i<n2; i++)
    {
        scanf("%d",&b[i]);
    }

    merge(a,b,c,n1,n2);

    printf(" 1st array :\n");

    print(a,n1);

	printf("\n2nd array :\n");

    print(b,n2);

	printf("\n3rd array :\n");

    print(c,n1+n2);
} 

The output of the above c program; as follows:

Enter size of the 1st array : 5
Enter elements in array : 1 2 3 4 5
Enter size of the 2nd array : 3
Enter elements in array : 6 7 8
1st array :
1  2  3  4  5
2nd array :
6  7  8
Merged array :
1  2  3  4  5  6  7  8  

Recommended C Programs