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| author | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
|---|---|---|
| committer | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
| commit | 8777ff071f7bb37631baa7b6717ad29961e50911 (patch) | |
| tree | 6d59c4ed58e454b960339c3d1151f0a879e8d7cb /racket/leetcode/lc-766-toeplitz-matrix.rkt | |
| parent | 6156a9ef7be4012063a042aafb4e9b0d7eadde8e (diff) | |
| download | gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.tar.gz gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.zip | |
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Diffstat (limited to 'racket/leetcode/lc-766-toeplitz-matrix.rkt')
| -rw-r--r-- | racket/leetcode/lc-766-toeplitz-matrix.rkt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/racket/leetcode/lc-766-toeplitz-matrix.rkt b/racket/leetcode/lc-766-toeplitz-matrix.rkt new file mode 100644 index 0000000..5606d2a --- /dev/null +++ b/racket/leetcode/lc-766-toeplitz-matrix.rkt @@ -0,0 +1,9 @@ +#lang racket + +(define/contract (is-toeplitz-matrix matrix) + (-> (listof (listof exact-integer?)) boolean?) + (cond [(empty? (cdr matrix)) #true] + [(equal? (drop-right (car matrix) 1) + (drop (cadr matrix) 1)) + (is-toeplitz-matrix (cdr matrix))] + [else #false]))
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