Adding number at a specific position in an array in C

 #include<stdio.h>

int main()

{

int i,n,arr[20],num,pos;

printf("\nEnter size of array : ");

scanf("%d",&n);

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

{

printf("\n arr[%d]= ",i);

scanf("%d",&arr[i]);

}

printf("\nEnter no want to add \n");

scanf("%d",&num);

printf("\nEnter position \n ");

scanf("%d",&pos);

for(i=n-1;i>pos;i--)

{

arr[i+1]=arr[i];

}

arr[pos]=num;

n=n+1;

printf("\n the after insertion is %d",num);

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

{

printf("\n arr[%d]=%d",i,arr[i]);

}

return 0;

}

output:

Enter size of array : 5
 arr[0]= 1
 arr[1]= 2
 arr[2]= 3
 arr[3]= 4
 arr[4]= 5
Enter no want to add
7
Enter position
 3
 the after insertion is 7
 arr[0]=1
 arr[1]=2
 arr[2]=3
 arr[3]=7
 arr[4]=4
 arr[5]=5