Can't we modify value of unordered map?

Question

Hi All
I am getting time limit error when I try to modify value in unordered map... Please refer line 65 in attached code:
Is it not possible or Am I missing something?
Thanks for your help in advance 👍
https://code.sololearn.com/crlS14DO8EvC/?ref=app

Answer 1

the problem is with the "if" statement condition (line 60).
the correct is → if (itr == um.end())

Answer 2

Opps ...copy paste typo nd then just focused on map value update rather than checking condition... Thanks a lot...!!