Merge pull request #10366 from packy/master

Challenge 276 solutions by Packy Anderson

1 files changed, 44 insertions, 0 deletions

diff --git a/challenge-276/packy-anderson/python/ch-2.py b/challenge-276/packy-anderson/python/ch-2.py
new file mode 100755
index 0000000000..9428fa0118
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+++ b/challenge-276/packy-anderson/python/ch-2.py
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+#!/usr/bin/env python
+
+from collections import Counter
+
+def comma_join(arr):
+    return ', '.join(map(lambda i: str(i), arr))
+
+def conjunction(ints):
+    if len(ints) < 2:
+        return(ints)
+    elif len(ints) == 2:
+        return(f'{ints[0]} and {ints[1]}')
+    else:
+        last = ints.pop(-1)
+        l = comma_join(ints)
+        return(f'{l}, and {last}')
+
+def maxFrequency(ints):
+    freq = Counter(ints)
+    maxFreq = max(freq.values())
+    atMax = []
+    for i in sorted(freq.keys()):
+        if freq[i] == maxFreq:
+            atMax.append(i)
+    numList  = conjunction(atMax)
+    elements = "elements" if len(atMax) > 1 else "element"
+    have     = "have"     if len(atMax) > 1 else "has"
+    explain = (
+        f"The maximum frequency is {maxFreq}.\n" +
+        f"The {elements} {numList} {have} " +
+        f"the maximum frequency."
+    )
+    return (maxFreq * len(atMax), explain)
+
+def solution(ints):
+    print(f'Input: @ints = ({comma_join(ints)})')
+    count, explain = maxFrequency(ints)
+    print(f'Output: {count}\n\n{explain}')
+
+print('Example 1:')
+solution([1, 2, 2, 4, 1, 5])
+
+print('\nExample 2:')
+solution([1, 2, 3, 4, 5])