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-1450-students-doing-homework.rkt | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 leetcode/lc-1450-students-doing-homework.rkt (limited to 'leetcode/lc-1450-students-doing-homework.rkt') diff --git a/leetcode/lc-1450-students-doing-homework.rkt b/leetcode/lc-1450-students-doing-homework.rkt new file mode 100644 index 0000000..14ff079 --- /dev/null +++ b/leetcode/lc-1450-students-doing-homework.rkt @@ -0,0 +1,12 @@ +#lang racket +(define/contract (busy-student start-time end-time query-time) + (-> (listof exact-integer?) (listof exact-integer?) exact-integer? exact-integer?) + (count (λ (start end) + (and (start . <= . query-time) + (query-time . <= . end))) start-time end-time)) + +(busy-student '(1 2 3) '(3 2 7) 4) +(busy-student '(4) '(4) 4) +(busy-student '(9 8 7 6 5 4 3 2 1) + '(10 10 10 10 10 10 10 10 10) + 5) \ No newline at end of file -- cgit v1.2.3