Check the code for error

#1

could you please check my code and tell me some test cases in which my code is lacking because of which I am not able to get the answer. The link for the code is given: https://ide.codingblocks.com/s/429745

#2

take into consideration the long constraints which are failing your code
refer to this here

#3

plzz tell me about my previous query

#4

Even your code is giving wrong output for the test cases, could u please elaborate this

#5

you just need to use long .shared the wrong code sorry
here:https://ide.codingblocks.com/s/433049