LL-Reversal K elements, Runtime error

#1

I’ve just made this code for reversal of first k elements yet the code isn’t running: https://ide.codingblocks.com/s/157367
please check. (I am yet to complete the whole question)

#2

In your code the variable “r” points to node 3 and the next of node 3 is node 4
Now when you reverse the link from node 2 to 3 TO node 3 to 2, Node 3 no more points node 4 but to node 2
Now c and n both point to node 4
Now your while loop never ends because it never finds next of node 3 which is node 2

#3

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