Merge pull request #10669 from packy/master

Challenge 283 solutions by Packy Anderson

1 files changed, 50 insertions, 0 deletions

diff --git a/challenge-283/packy-anderson/python/ch-2.py b/challenge-283/packy-anderson/python/ch-2.py
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+++ b/challenge-283/packy-anderson/python/ch-2.py
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+#!/usr/bin/env python
+
+from collections import Counter
+
+def digitCountValue(ints):
+  bag = Counter(ints)  # count occurrences
+  explain = []
+  passes = True
+  for digit in range(len(ints)):
+    times  = ints[digit]
+    occurs = bag[digit]
+    otimes = (
+      "0 times"         if occurs == 0 else
+      f"{occurs} times" if occurs >= 2 else
+      "1 time"
+    )
+    if times == occurs:
+      explain.append(
+        f"$ints[{digit}] = {times}, the digit {digit} " +
+        f"occurs {otimes}"
+      )
+    else:
+      passes = False
+      ttimes = (
+        "0 times"        if times == 0 else
+        f"{times} times" if times >= 2 else
+        "1 time"
+      )
+      explain.append(
+        f"$ints[{digit}] = {times}, the digit {digit} " +
+        f"occurs {otimes} rather than {ttimes}"
+      )
+  return passes, "\n".join(explain)
+
+def comma_join(arr):
+  return ', '.join(map(lambda i: str(i), arr))
+
+def solution(ints):
+  print(f'Input: @ints = ({comma_join(ints)})')
+  passes, explain = digitCountValue(ints)
+  print(f'Output: {passes}\n\n{explain}')
+
+print('Example 1:')
+solution([1, 2, 1, 0])
+
+print('\nExample 2:')
+solution([0, 3, 0])
+
+print('\nExample 3:')
+solution([0, 1, 2, 2])