From 1fe5cad5a37499cbfc0833bc948401f9daacdb81 Mon Sep 17 00:00:00 2001
From: Tejas Varshney <tejasvarshney05@gmail.com>
Date: Tue, 15 Oct 2024 22:47:26 +0530
Subject: [PATCH 1/3] Added Trailing Zero Algo

Created an algorithm that return the trailing zeroes of a number
---
 maths/trailing_zeroes.py | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 maths/trailing_zeroes.py

diff --git a/maths/trailing_zeroes.py b/maths/trailing_zeroes.py
new file mode 100644
index 000000000000..f0c7238ea48d
--- /dev/null
+++ b/maths/trailing_zeroes.py
@@ -0,0 +1,40 @@
+"""
+    https://en.wikipedia.org/wiki/Trailing_zero
+"""
+
+
+def trailing_zeroes(num: int) -> int:
+    """
+    Finding the Trailing Zeroes i.e. zeroes present at the end of number
+    Args:
+        num: A integer.
+    Returns:
+        No. of zeroes in the end of an integer.
+
+    >>> trailing_zeroes(1000)
+    3
+    >>> trailing_zeroes(102983100000)
+    5
+    >>> trailing_zeroes(0)
+    1
+    >>> trailing_zeroes(913273)
+    0
+    """
+    ans = 0
+    if num < 0:
+        return -1
+    if num == 0:
+        return 1
+    while num > 0:
+        if num % 10 == 0:
+            ans += 1
+        else:
+            break
+        num /= 10
+    return ans
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()

From 266c203a49d45909830e7f8129f26036018bde93 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 15 Oct 2024 17:20:10 +0000
Subject: [PATCH 2/3] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 maths/trailing_zeroes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/maths/trailing_zeroes.py b/maths/trailing_zeroes.py
index f0c7238ea48d..b1c1cdea0bbf 100644
--- a/maths/trailing_zeroes.py
+++ b/maths/trailing_zeroes.py
@@ -1,5 +1,5 @@
 """
-    https://en.wikipedia.org/wiki/Trailing_zero
+https://en.wikipedia.org/wiki/Trailing_zero
 """
 
 

From b464088c548ca9ed24110f1fc17308fe8d938843 Mon Sep 17 00:00:00 2001
From: cclauss <cclauss@users.noreply.github.com>
Date: Tue, 8 Sep 2026 13:10:52 +0000
Subject: [PATCH 3/3] updating DIRECTORY.md

---
 DIRECTORY.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/DIRECTORY.md b/DIRECTORY.md
index c5bac23ad35b..064844b94907 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -874,6 +874,7 @@
   * [Test Factorial](maths/test_factorial.py)
   * [Test Prime Check](maths/test_prime_check.py)
   * [Three Sum](maths/three_sum.py)
+  * [Trailing Zeroes](maths/trailing_zeroes.py)
   * [Trapezoidal Rule](maths/trapezoidal_rule.py)
   * [Triplet Sum](maths/triplet_sum.py)
   * [Twin Prime](maths/twin_prime.py)