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I took a wrong turn on this somewhere! The eval & slice are annoying me, as is the need for y.!
eval
slice
y
x=>g=(n,y,...a)=>n?g(n-1,-~y,...a,x<=ya[x-1]?eval(a.slice(-x).join`+`):1):a
Try it online!Try it online!
I took a wrong turn on this somewhere! The eval & slice are annoying me, as is the need for y.
x=>g=(n,y,...a)=>n?g(n-1,-~y,...a,x<=y?eval(a.slice(-x).join`+`):1):a
Try it online!
The eval & slice are annoying me!
x=>g=(n,...a)=>n?g(n-1,...a,a[x-1]?eval(a.slice(-x).join`+`):1):a
x=>g=(n,y,...a)=>n?g(n-1,-~y,...a,n-x<xx<=y?eval(a.slice(-x).join`+`):1):a
x=>g=(n,...a)=>n?g(n-1,...a,n-x<x?eval(a.slice(-x).join`+`):1):a
