From 173a7297d1355ea8d38f075e7236ef68be84eebd Mon Sep 17 00:00:00 2001
From: = <yadavkhushwant777@gmail.com>
Date: Tue, 17 Oct 2023 00:10:53 +0530
Subject: [PATCH 1/2] Added ReverseString

---
 src/main/kotlin/strings/ReverseString.kt     | 32 ++++++++++++++++++
 src/test/kotlin/strings/ReverseStringTest.kt | 35 ++++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 src/main/kotlin/strings/ReverseString.kt
 create mode 100644 src/test/kotlin/strings/ReverseStringTest.kt

diff --git a/src/main/kotlin/strings/ReverseString.kt b/src/main/kotlin/strings/ReverseString.kt
new file mode 100644
index 0000000..8a0c5dc
--- /dev/null
+++ b/src/main/kotlin/strings/ReverseString.kt
@@ -0,0 +1,32 @@
+package strings
+
+/**
+ * Reverses a given string in-place.
+ *
+ * @param str The input string to be reversed.
+ * @return The reversed string.
+ */
+fun reverseString(str: String): String {
+    // Check if the input string is null or empty.
+    if (str.isNullOrEmpty()) {
+        // If it is, return the input string as it is (no change needed).
+        return str
+    }
+
+    // Convert the input string to a character array.
+    val charArray = str.toCharArray()
+    var i = 0
+    var j = str.length - 1
+
+    // Swap characters from the beginning and end to reverse the string in-place.
+    while (i < j) {
+        val temp = charArray[i]
+        charArray[i] = charArray[j]
+        charArray[j] = temp
+        i++
+        j--
+    }
+
+    // Convert the character array back to a string and return the reversed string.
+    return String(charArray)
+}
diff --git a/src/test/kotlin/strings/ReverseStringTest.kt b/src/test/kotlin/strings/ReverseStringTest.kt
new file mode 100644
index 0000000..944f102
--- /dev/null
+++ b/src/test/kotlin/strings/ReverseStringTest.kt
@@ -0,0 +1,35 @@
+package strings
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class ReverseStringTest {
+
+    @Test
+    fun testReverseStringWithEmptyString() {
+        val input = ""
+        val expected = ""
+        assertEquals(expected, reverseString(input))
+    }
+
+    @Test
+    fun testReverseStringWithSingleCharacter() {
+        val input = "a"
+        val expected = "a"
+        assertEquals(expected, reverseString(input))
+    }
+
+    @Test
+    fun testReverseStringWithEvenLengthString() {
+        val input = "abcdef"
+        val expected = "fedcba"
+        assertEquals(expected, reverseString(input))
+    }
+
+    @Test
+    fun testReverseStringWithOddLengthString() {
+        val input = "hello"
+        val expected = "olleh"
+        assertEquals(expected, reverseString(input))
+    }
+}

From f6535ef9fc4114015746ef057620aac2364e3576 Mon Sep 17 00:00:00 2001
From: = <yadavkhushwant777@gmail.com>
Date: Tue, 17 Oct 2023 00:20:46 +0530
Subject: [PATCH 2/2] Added ReverseString

---
 src/main/kotlin/strings/ReverseString.kt | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/main/kotlin/strings/ReverseString.kt b/src/main/kotlin/strings/ReverseString.kt
index 8a0c5dc..6de50ed 100644
--- a/src/main/kotlin/strings/ReverseString.kt
+++ b/src/main/kotlin/strings/ReverseString.kt
@@ -1,24 +1,20 @@
 package strings
 
 /**
- * Reverses a given string in-place.
+ * Reverses a given string
  *
  * @param str The input string to be reversed.
  * @return The reversed string.
  */
 fun reverseString(str: String): String {
-    // Check if the input string is null or empty.
     if (str.isNullOrEmpty()) {
-        // If it is, return the input string as it is (no change needed).
         return str
     }
 
-    // Convert the input string to a character array.
     val charArray = str.toCharArray()
     var i = 0
     var j = str.length - 1
 
-    // Swap characters from the beginning and end to reverse the string in-place.
     while (i < j) {
         val temp = charArray[i]
         charArray[i] = charArray[j]
@@ -27,6 +23,5 @@ fun reverseString(str: String): String {
         j--
     }
 
-    // Convert the character array back to a string and return the reversed string.
     return String(charArray)
 }