Code Not Working

#1

The code is not accepted by the test cases , but is working for the test given in the question.
Please help me where in realising where my code is wrong.
Thank You!!.

#2

print_element_from_target_to_k_level()
in this function
if root!=target then your code will not work correctly

if you reach at leaf node then
it’s left and right both return -1 hence according to your code it also return -1 and hence every node return -1

#3

so you have to consider leaf node case seperately

#4

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