Challenge 243 solutions by Packy Anderson

 * Raku
 * Perl
 * Python

1 Blog post

2 files changed, 60 insertions, 0 deletions

diff --git a/challenge-243/packy-anderson/python/ch-1.py b/challenge-243/packy-anderson/python/ch-1.py
new file mode 100755
index 0000000000..d490ef0bf1
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+++ b/challenge-243/packy-anderson/python/ch-1.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+from collections import UserList
+
+class ReversePairArray(UserList):
+    def isReversePair(self, i, j):
+        return self.data[i] > 2 * self.data[j]
+
+def findReversePairs(nums):
+    pairs = []
+    rpArray = ReversePairArray(nums)
+    for i in range(0, len(nums) - 1):
+        for j in range(i+1, len(nums)):
+            if rpArray.isReversePair(i, j):
+                pairs.append([i, j])
+    return pairs
+
+def comma_join(arr):
+    return ', '.join(map(lambda i: str(i), arr))
+
+def solution(nums):
+    print(f'Input: @nums = ({comma_join(nums)})')
+    pairs = findReversePairs(nums)
+    print(f'Output: {len(pairs)}')
+    for pair in pairs:
+        (i, j) = pair
+        print(f'({i}, {j}) => ', end='')
+        print(f'nums[{i}] = {nums[i]}, ', end='')
+        print(f'nums[{j}] = {nums[j]}, ', end='')
+        print(f'{nums[i]} > 2 * {nums[j]}')
+
+print('Example 1:')
+solution([1, 3, 2, 3, 1])
+
+print('\nExample 2:')
+solution([2, 4, 3, 5, 1])
diff --git a/challenge-243/packy-anderson/python/ch-2.py b/challenge-243/packy-anderson/python/ch-2.py
new file mode 100755
index 0000000000..8b2172ab3a
--- /dev/null
+++ b/challenge-243/packy-anderson/python/ch-2.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+from math import trunc
+
+def floorSum(nums):
+    sum = 0;
+    for i in range(0, len(nums)):
+        for j in range(0, len(nums)):
+            sum += trunc(nums[i] / nums[j])
+    return sum
+
+def comma_join(arr):
+    return ', '.join(map(lambda i: str(i), arr))
+
+def solution(nums):
+    print(f'Input: @nums = ({comma_join(nums)})')
+    sum = floorSum(nums)
+    print(f'Output: {sum}')
+
+print('Example 1:')
+solution([2, 5, 9])
+
+print('\nExample 2:')
+solution([7, 7, 7, 7, 7, 7, 7])