Merging of arrays

#1

How to merge two arrays?

#2

Two sorted arrays can be merged this way:

  1. create an array of size n1+n2 where n1 and n2 are sizes of sorted arrays given
  2. place a pointer (say i) at start of first array and another pointer at start of second array(say j) and third pointer at start of resultant array(say k)
    i=0,j=0,k=0
    now if(a1[i]<a2[j])
    then result[k]=a1[i],k++,i++;
    else
    result[k]=a2[j],k++,j++;
    to this until i or j reaches to end.
    after this it may be possible that some elements remain in one of arrays, so just put these elements in your result array by doing:
    while(i<n1)
    result[k]=a1[i],k++,i++;
    while(j<n2)
    result[k]=a2[j],k++,j++;
#3

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