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authorWilliam Carroll <wpcarro@gmail.com>2020-11-12T14·37+0000
committerWilliam Carroll <wpcarro@gmail.com>2020-11-12T14·37+0000
commitaa66d9b83d5793bdbb7fe28368e0642f7c3dceac (patch)
treea0e6ad240fe1cdfd2fcdba7266931beea9fbe0d6 /scratch/facebook/cafe-order-checker.py
parentd2d772e43e0d4fb1bfaaa58d7de0c9e2cc274a25 (diff)
Add coding exercises for Facebook interviews
Add attempts at solving coding problems to Briefcase.
Diffstat (limited to 'scratch/facebook/cafe-order-checker.py')
-rw-r--r--scratch/facebook/cafe-order-checker.py19
1 files changed, 19 insertions, 0 deletions
diff --git a/scratch/facebook/cafe-order-checker.py b/scratch/facebook/cafe-order-checker.py
new file mode 100644
index 000000000000..9d88a68069fd
--- /dev/null
+++ b/scratch/facebook/cafe-order-checker.py
@@ -0,0 +1,19 @@
+def orders_are_sorted(take_out, dine_in, audit):
+    if len(take_out) + len(dine_in) != len(audit):
+        return False
+
+    i, j = 0, 0
+    for x in audit:
+        if i < len(take_out) and take_out[i] == x:
+            i += 1
+        elif j < len(dine_in) and dine_in[j] == x:
+            j += 1
+        else:
+            return False
+    return True
+
+
+assert orders_are_sorted([1,3,5], [2,4,6], [1,2,4,3,6,5])
+assert not orders_are_sorted([1,3,5], [2,4,6], [1,2,4,5,6,3])
+assert orders_are_sorted([], [2,4,6], [2,4,6])
+print("Success!")