Why are we making pair <str,str> ? and what if we enter string a={"11 22 33 44 55"}

#1

why are we making pair <str,str> ??? and what if we enter string a={“11 22 33 44 55”}

#2

Hi,

pair<str,str> contains pair of string and the key in the string.
if a={“11 22 33 44 55”}
and if key is 3 then pair is between string a and “33”.

#3

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