for.c: For loop demo

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>
recursive_print.c: Recursion example

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>
list.c: Single linked list

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>
insertionsort.c: Insertion sort

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>
selectionsort.c: Selection sort

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>
mergesort.c: Merge sort

Signed-off-by: Gajanan Bhat <gajananbhat87@gmail.com>