python code for challenge 72

initial draft

2 files changed, 33 insertions, 0 deletions

diff --git a/challenge-072/walt-mankowski/python/ch-1.py b/challenge-072/walt-mankowski/python/ch-1.py
new file mode 100644
index 0000000000..51106843ad
--- /dev/null
+++ b/challenge-072/walt-mankowski/python/ch-1.py
@@ -0,0 +1,21 @@
+from sys import argv
+
+def fact(n):
+    res = 1
+    for i in range(2, n+1):
+        res *= i
+    return res
+
+def num_trailing_zeros(n):
+    cnt = 0
+    pwr = 10
+    while n % pwr == 0:
+        cnt += 1
+        pwr *= 10
+    return cnt
+
+n = int(argv[1])
+f = fact(n)
+z = num_trailing_zeros(f)
+zeros = "zero" if z == 1 else "zeros"
+print(f"{n} as N! = {f} has {z} trailing {zeros}")
diff --git a/challenge-072/walt-mankowski/python/ch-2.py b/challenge-072/walt-mankowski/python/ch-2.py
new file mode 100644
index 0000000000..abc3f4e85c
--- /dev/null
+++ b/challenge-072/walt-mankowski/python/ch-2.py
@@ -0,0 +1,12 @@
+from sys import argv
+
+fname, a, b = argv[1:5]
+a = int(a)
+b = int(b)
+
+with open(fname) as f:
+    lineno = 1
+    for line in f:
+        if a <= lineno <= b:
+            print(line, end='')
+        lineno += 1