Problem with the unordered map

#1

from where -1 is coming in the output. Is unordered map is not working properly?

#2

Hello @gaurav19063 due to this property only unordered map is always asked to not to use.
Happy Learning!!

#3

what is the property?

#4

@gaurav19063 check this:


you have to check the existence of the element as well.
Happy Learning!!

#5

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