Linked lists doubts

#1

what is wrong with my detect cycle function it is giving false as output even when the cycle is present in the linked list.
my code link:
https://ide.codingblocks.com/#/s/25493

#2

You have applied wrong conditions. There may be a case in detect cycle, where NULL is not present at all. Your code will not work for such list.
eg. 3->5->2->6->5

Please try again after reading the question again carefully.

#3

how to input multiple linked lists with different values of n.
my code is not working fine .i don’t know why.pls help
https://ide.codingblocks.com/#/s/26083