Dia of the tree doubt

if im making a class of pair then its giving me error
reference to ‘pair’ is ambiguous
but if i name it pair1 its working why?

Hey @deepakjumani09
You can’t use pair as name of your class coz “pair” is a C++ keyword. class named pair already exists in STL, hence it’s a keyword hence you can’t make a class/variable named pair.

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