From 7e621c269f58605a18c9dc78e756c7995b6bca42 Mon Sep 17 00:00:00 2001
From: Nitin Pratap Singh <152788570+Nitin-Prata@users.noreply.github.com>
Date: Thu, 10 Jul 2025 23:04:11 +0530
Subject: [PATCH 1/3] =?UTF-8?q?=E2=9C=85=20Add=20doctests=20to=20string=20?=
 =?UTF-8?q?conversion=20functions?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 strings/min_cost_string_conversion.py | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/strings/min_cost_string_conversion.py b/strings/min_cost_string_conversion.py
index 87eb5189e16a..d5c51285feb7 100644
--- a/strings/min_cost_string_conversion.py
+++ b/strings/min_cost_string_conversion.py
@@ -18,9 +18,12 @@ def compute_transform_tables(
     insert_cost: int,
 ) -> tuple[list[list[int]], list[list[str]]]:
     """
-    Finds the most cost efficient sequence
+    Finds the most cost-efficient sequence
     for converting one string into another.
 
+    >>> compute_transform_tables("", "", 1, 2, 3, 3)
+    ([[0]], [['0']])
+
     >>> costs, operations = compute_transform_tables("cat", "cut", 1, 2, 3, 3)
     >>> costs[0][:4]
     [0, 3, 6, 9]
@@ -30,10 +33,8 @@ def compute_transform_tables(
     ['0', 'Ic', 'Iu', 'It']
     >>> operations[3][:4]
     ['Dt', 'Dt', 'Rtu', 'Ct']
-
-    >>> compute_transform_tables("", "", 1, 2, 3, 3)
-    ([[0]], [['0']])
     """
+     
     source_seq = list(source_string)
     destination_seq = list(destination_string)
     len_source_seq = len(source_seq)
@@ -86,18 +87,13 @@ def assemble_transformation(ops: list[list[str]], i: int, j: int) -> list[str]:
     >>> assemble_transformation(ops, x, y)
     ['Cc', 'Rau', 'Ct']
 
-    >>> ops1 = [['0']]
-    >>> x1 = len(ops1) - 1
-    >>> y1 = len(ops1[0]) - 1
-    >>> assemble_transformation(ops1, x1, y1)
+    >>> assemble_transformation([['0']], 0, 0)
     []
 
     >>> ops2 = [['0', 'I1', 'I2', 'I3'],
     ...         ['D1', 'C1', 'I2', 'I3'],
     ...         ['D2', 'D2', 'R23', 'R23']]
-    >>> x2 = len(ops2) - 1
-    >>> y2 = len(ops2[0]) - 1
-    >>> assemble_transformation(ops2, x2, y2)
+    >>> assemble_transformation(ops2, 2, 3)
     ['C1', 'I2', 'R23']
     """
     if i == 0 and j == 0:

From be1332dec15709d423607ffb47b2a4395d21b640 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Thu, 10 Jul 2025 17:37:28 +0000
Subject: [PATCH 2/3] [pre-commit.ci] auto fixes from pre-commit.com hooks

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

diff --git a/strings/min_cost_string_conversion.py b/strings/min_cost_string_conversion.py
index d5c51285feb7..24cd303f5c6f 100644
--- a/strings/min_cost_string_conversion.py
+++ b/strings/min_cost_string_conversion.py
@@ -34,7 +34,7 @@ def compute_transform_tables(
     >>> operations[3][:4]
     ['Dt', 'Dt', 'Rtu', 'Ct']
     """
-     
+
     source_seq = list(source_string)
     destination_seq = list(destination_string)
     len_source_seq = len(source_seq)

From 607630ba35e16d931f0565ebd72fe1b0b37a2dee Mon Sep 17 00:00:00 2001
From: Nitin Pratap Singh <152788570+Nitin-Prata@users.noreply.github.com>
Date: Thu, 10 Jul 2025 23:35:48 +0530
Subject: [PATCH 3/3] fix: remove whitespace from blank line (ruff W293)

---
 strings/min_cost_string_conversion.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/strings/min_cost_string_conversion.py b/strings/min_cost_string_conversion.py
index 24cd303f5c6f..cddc0495c895 100644
--- a/strings/min_cost_string_conversion.py
+++ b/strings/min_cost_string_conversion.py
@@ -96,6 +96,7 @@ def assemble_transformation(ops: list[list[str]], i: int, j: int) -> list[str]:
     >>> assemble_transformation(ops2, 2, 3)
     ['C1', 'I2', 'R23']
     """
+
     if i == 0 and j == 0:
         return []
     elif ops[i][j][0] in {"C", "R"}: