About unordered map

#1

in phonebook program, may I use unoedered<string, int> mp;
because sir has used unordered with vector, please explain why sir has used

#2

hey @mkjha it is possible that many people with same name have different numbers, so it is possible to store all the numbers if you are using vector on int.

#3

in unordered map we can use for store the int value,if same name occur

#4

sir has used unordered_map<string,vector> mp. why did he use vector

#5

if i use unordered_map<string,int> m. in phonebook programm what will error occur

#6

if you use <string ,int> you wont be able to store multiple entried the new entries will over write the old ones.

#7

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