Input : A list (array) of number, number of elements in the list and key to search.
Output : Returns 1 if the key is found otherwise returns 0.

LSEARCH(LIST, N, KEY)
[LIST is an array of numbers, N is the size of the array and KEY is the number to search]
Repeat For I=0,1,2,3.....N-1   [Assuming that array index start from 0]
If (KEY == LIST[I] ) Then:
Return 1
[End of If]
Return 0
Exit.