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Explore Stack Internal#JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) Or 24 bytes to support BigInts.
#JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) #JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) Or 24 bytes to support BigInts.
#JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) Or 24 bytes to support BigInts.
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) #JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) Or 24 bytes to support BigInts.
#JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) #JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) #JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) #JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) Or 24 bytes to support BigInts.
#JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0]) #JavaScript (ES6), 2521 bytes
Takes input as (k)(n).
k=>g=n=>n>k?n*gk=>g=n=>n<1||n*g(n-k):n|!n Or 26 bytes to support BigInts.Try it online!
#JavaScript (ES6), 5955 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n*=n<k||gg=n=>n<1||n*g(n-k+1k))(a[0])||1 #JavaScript (ES6), 25 bytes
Takes input as (k)(n).
k=>g=n=>n>k?n*g(n-k):n|!n Or 26 bytes to support BigInts.
#JavaScript (ES6), 59 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length,g=n=>n*=n<k||g(n-k+1))(a[0])||1 #JavaScript (ES6), 21 bytes
Takes input as (k)(n).
k=>g=n=>n<1||n*g(n-k) #JavaScript (ES6), 55 bytes
Takes input as a string, using the format described in the challenge.
s=>(a=s.split`!`,k=a.length-1,g=n=>n<1||n*g(n-k))(a[0])