Can you tell my mistake?

#1
#2

for which testcase you are getting wrong ans??

i checked and code is correct

#3

In my compiler, it was showing as error…It was showing that there is ambiguous reference to pair.

#4

this is because there is inbuilt class named pair also

so change the name of your class to Pair (P capital)

#5

Sir, It is still not coming.
I gave the following input.
8 10 1 -1 -1 6 9 -1 -1 7 -1 -1 3 -1 14 13 -1 -1 -1

#6

sorry i missed your doubt

Modified code

mistake

  1. change the name of Class
  2. return from base case
  3. make the class public
#7

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