adding old leetcode solutions

1 files changed, 14 insertions, 0 deletions

diff --git a/leetcode/lc-836-rectangle-overlap.rkt b/leetcode/lc-836-rectangle-overlap.rkt
new file mode 100644
index 0000000..ecdfb56
--- /dev/null
+++ b/leetcode/lc-836-rectangle-overlap.rkt
@@ -0,0 +1,14 @@
+#lang racket
+(define (rectangle-area lst)
+  (match-define (list x1 y1 x2 y2) lst)
+  (* (- x2 x1) (- y2 y1)))
+
+(define/contract (is-rectangle-overlap rec1 rec2)
+  (-> (listof exact-integer?) (listof exact-integer?) boolean?)
+  (cond [(or (= 0 (rectangle-area rec1))
+             (= 0 (rectangle-area rec2))) #false]
+        [(not (or ((list-ref rec1 2) . <= . (list-ref rec2 0))
+                  ((list-ref rec1 3) . <= . (list-ref rec2 1))
+                  ((list-ref rec1 0) . >= . (list-ref rec2 2))
+                  ((list-ref rec1 1) . >= . (list-ref rec2 3)))) #true]
+        [else #false]))
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