From 8777ff071f7bb37631baa7b6717ad29961e50911 Mon Sep 17 00:00:00 2001 From: "H.J" Date: Wed, 9 Oct 2024 11:36:55 -0400 Subject: sorting by language --- leetcode/lc-504-base7.rkt | 16 ---------------- 1 file changed, 16 deletions(-) delete mode 100644 leetcode/lc-504-base7.rkt (limited to 'leetcode/lc-504-base7.rkt') diff --git a/leetcode/lc-504-base7.rkt b/leetcode/lc-504-base7.rkt deleted file mode 100644 index 3e75052..0000000 --- a/leetcode/lc-504-base7.rkt +++ /dev/null @@ -1,16 +0,0 @@ -#lang racket - -(define/contract (convert-to-base7 num) - (-> exact-integer? string?) - (define (max-base-power n base [pow 1]) - (cond [(n . = . (expt base pow)) pow] - [(n . < . (expt base pow)) (sub1 pow)] - [else (max-base-power n base (add1 pow))])) - (define (add-next-digit n pow acc) - (cond [(= pow 0) (string-append acc (number->string n))] - [else (add-next-digit (remainder n (expt 7 pow)) - (sub1 pow) - (string-append acc - (number->string (quotient n (expt 7 pow)))))])) - (string-append (if (negative? num) "-" "") - (add-next-digit (abs num) (max-base-power (abs num) 7) ""))) \ No newline at end of file -- cgit v1.2.3