Compator Class Code not wokring

#1


Please check the code and tell where i am wrong

#2

@Shortcuttohell your vector type is int and you are trying to put values of type Book inside it

#3

@Shortcuttohell in line 64 as well, the iterator is pointing to an object, you cant directly print an object. Print it like cout << it->price;

#4

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