From fafbeaf9e3c09ba7a5bea7e47d5736001f8a5aa1 Mon Sep 17 00:00:00 2001 From: HJ Date: Tue, 17 Jan 2023 12:46:04 -0500 Subject: adding old leetcode solutions --- leetcode/lc-1812-chessboard-square.rkt | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 leetcode/lc-1812-chessboard-square.rkt (limited to 'leetcode/lc-1812-chessboard-square.rkt') diff --git a/leetcode/lc-1812-chessboard-square.rkt b/leetcode/lc-1812-chessboard-square.rkt new file mode 100644 index 0000000..206392c --- /dev/null +++ b/leetcode/lc-1812-chessboard-square.rkt @@ -0,0 +1,7 @@ +#lang racket +(define/contract (square-is-white coordinates) + (-> string? boolean?) + (define file (first (string->list coordinates))) + (define rank (second (string->list coordinates))) + (or (and (odd? (char->integer file)) (even? (char->integer rank))) + (and (even? (char->integer file)) (odd? (char->integer rank))))) \ No newline at end of file -- cgit v1.2.3