Did not understand properly

#1

can we just use map and set stl for such type of que

#2

@Ashu1318 the concept is quite simple, what part are you confused about, maybe I can help in clearing the confusion?
If you use a map, then also you’d be doing the same thing only. Here since the range of marks is given to be 1-100 we can easily make a vector of size 101 to accomodate this.

#3

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