Why i am getting wa

#1
#2

Hello Apoorv, why are you doing this

        if(x==1)
        {
            updatelazy(lazy,tree,0,n-1,n-r-1,n-l-1,1,1);
        }
        else if(x==0)
        {
            updatelazy(lazy,tree,0,n-1,n-r-1,n-l-1,1,0);
        }
        else if(x==2)
        {
            long long int ans=querylazy(lazy,tree,0,n-1,n-r-1,n-l-1,1);
            long long int p=powmd(2,n-r-1);
            cout<<ans/p<<"\n";
        }

why are you passing n-l-1 and n-r-1 as a range. Pls explain your logic a little bit or you can also have a look at this.

#3

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