2 files changed, 78 insertions, 0 deletions
diff --git a/challenge-248/packy-anderson/python/ch-1.py b/challenge-248/packy-anderson/python/ch-1.py
new file mode 100755
index 0000000000..e4f309808e
--- /dev/null
+++ b/challenge-248/packy-anderson/python/ch-1.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+def shortestDistance(s, c):
+    # split the string into an array of characters
+    strchar = list(s)
+    # find the positions of the target char
+    pos = [ x for x in range(len(s)) if strchar[x] == c ]
+
+    output = []
+    for i in range(len(s)):
+        # find the distances
+        distance = [ abs(i - p) for p in pos ]
+        # find the minimum distance
+        output.append(  min(distance) )
+    return output
+
+def comma_join(arr):
+    return ','.join(map(lambda i: str(i), arr))
+
+def solution(s, c):
+    print(f'Input: $str = "{s}", $char = "{c}"')
+    output = shortestDistance(s, c)
+    print(f'Output: ({comma_join(output)})')
+
+print('Example 1:')
+solution("loveleetcode", "e")
+
+print('\nExample 2:')
+solution("aaab", "b")
+\ No newline at end of file
diff --git a/challenge-248/packy-anderson/python/ch-2.py b/challenge-248/packy-anderson/python/ch-2.py
new file mode 100755
index 0000000000..a31b91af1a
--- /dev/null
+++ b/challenge-248/packy-anderson/python/ch-2.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+def submatrixSum(a):
+    # subtract 1 because we're 0-indexed
+    M = len(a) - 1    # rows
+    N = len(a[0]) - 1 # columns
+    # we are ASSUMING the matrix is consistent with
+    # each row having the same number of columns
+    b = []
+    for i in range(M):
+        row = []
+        for k in range(N):
+            row.append( a[i  ][k] + a[i  ][k+1] +
+                        a[i+1][k] + a[i+1][k+1] )
+        b.append(row)
+    return b
+
+def formatMatrix(matrix, indent=13):
+    output = []
+    for row in matrix:
+        output_row = ' ' * indent + '  ['
+        output_row += ', '.join(map(lambda i: str(i), row))
+        output_row += ']'
+        output.append(output_row)
+
+    return(
+        "[\n" + ",\n".join(output) + "\n" +
+        ' ' * indent + ']'
+    )
+
+def solution(a):
+    print(f'Input:  $a = {formatMatrix(a)}')
+    b = submatrixSum(a)
+    print(f'Output: $b = {formatMatrix(b)}')
+
+print('Example 1:')
+solution([
+            [1,  2,  3,  4],
+            [5,  6,  7,  8],
+            [9, 10, 11, 12]
+         ])
+
+print('\nExample 2:')
+solution([
+            [1, 0, 0, 0],
+            [0, 1, 0, 0],
+            [0, 0, 1, 0],
+            [0, 0, 0, 1]
+         ])