Interesting segment tree template supporting multi-operations

[GaurangTandon]

https://github.com/ouuan/segmentTree/blob/master/README.md#Demos (from here- https://codeforces.com/blog/entry/70467)

We have to see if it better than our current segment tree and in what way.

[AnimeshSinha1309]

Okay, but it's highly unlikely that it is reasonably better, unless you are thinking of cache optimisation and stuff. Our's is already as clean as it gets.