Thread: Inserting into array

This is my sample code , however i seem to get an odd answer , can someone explain why i get my ans as :

This is the Terminal output , LOOK BELOW FOR THE CODE

Enter Element: 1 1

Enter Size of Array:1 4


Enter 4 Elements into the Array:


Enter Element: 1 1


Enter Element: 2 2


Enter Element: 3 3


Enter Element: 4 4


Enter Size of Array:2 4


Enter 4 Elements into the Array:


Enter Element: 1 1


Enter Element: 2 2


Enter Element: 3 3


Enter Element: 4 4


Insert Array:1 into Array:2 at Position: 1


Size of Array :2 is 4
The New array Size 8 :


1
1
2
3
4
2
3
2. <why 2 here IT SHOULD BE 4 ?????

code

Code:

#include <stdio.h>
#include <stdlib.h>

int main()
{
  int n, m, key, loc, i;

  system("clear");

  //const int n=10;//n =sizeof(a)/sizeof(int);

  printf("\nEnter Size of Array:1\t");
  scanf("%d", &m);
  int a[m];
  printf("\nEnter %d Elements into the Array:\n", m);
  for (i = 0; i < m; i++) {
    printf("\nEnter Element: %d\t", i + 1);
    scanf("%d", &a);
  }

  printf("\nEnter Size of Array:2\t");
  scanf("%d", &n);
  int b[n];
  printf("\nEnter %d Elements into the Array:\n", n);
  for (i = 0; i < n; i++) {
    printf("\nEnter Element: %d\t", i + 1);
    scanf("%d", &b);
  }

  printf("\nInsert Array:1 into Array:2 at Position:\t ");
  scanf("%d", &loc);

  printf("\nSize of Array :2 is %d", n);

  //shifting
  for (i = m - 1; i >= loc; i--) {
    a[i + n] = a;
  }

  for (i = 0; i < n; i++)       //insert n elements from 2nd array
  {
    a[loc + i] = b;
  }

  n = m + n;
  printf("\nThe New array Size %d :", n);

  for (i = 0; i < n; i++) {
    printf("\n%d", a);
  }

  printf("\n");
  return 0;
}