Merge k sorted linklist using minheap

#1

question–>
https://practice.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1

code–>


i am submitting in gfg

not passing all testcases

#2

Modified Code

there is small mistake in compare function
it should be
return a->data>b->data;

#3

thanks @asaurabh_26 !

#4

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