Implementation of segment tree using array

[ajax-07]

Is your feature request related to a problem? Please describe.
i would like to add implementation of segment tree

Describe the solution you'd like
i can implement segments tree using array

please assign me

[VarunSingh029]

can implement:-

-How To Build A Segment Tree
-Update On A Segment Tree
-Query On A Segment Tree
-Size Of Segment Tree