diff --git a/merge-two-sorted-lists/Cargo.toml b/merge-two-sorted-lists-21/Cargo.toml
similarity index 100%
rename from merge-two-sorted-lists/Cargo.toml
rename to merge-two-sorted-lists-21/Cargo.toml
diff --git a/merge-two-sorted-lists/src/main.rs b/merge-two-sorted-lists-21/src/main.rs
similarity index 100%
rename from merge-two-sorted-lists/src/main.rs
rename to merge-two-sorted-lists-21/src/main.rs
diff --git a/remove_duplicates/Cargo.toml b/remove-duplicates-from-sorted-array-26/Cargo.toml
similarity index 100%
rename from remove_duplicates/Cargo.toml
rename to remove-duplicates-from-sorted-array-26/Cargo.toml
diff --git a/remove-duplicates-from-sorted-array-26/src/main.rs b/remove-duplicates-from-sorted-array-26/src/main.rs
new file mode 100644
index 0000000..806f13e
--- /dev/null
+++ b/remove-duplicates-from-sorted-array-26/src/main.rs
@@ -0,0 +1,25 @@
+pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+    if nums.is_empty() {
+        return 0;
+    }
+
+    let mut i = 0;
+    for j in 1..nums.len() {
+        if nums[j] != nums[i] {
+            i += 1;
+            nums[i] = nums[j];
+        }
+    }
+
+    nums.truncate(i + 1); // Remove extra elements
+    (i + 1) as i32
+}
+
+fn main() {
+    let mut nums = vec![1, 1, 2];
+    let new_length = remove_duplicates(&mut nums);
+
+    println!("New length: {}", new_length);
+    println!("Modified nums: {:?}", &nums[..new_length as usize]); // Print only the unique part
+    println!("Hello, world!");
+}
diff --git a/roman-to-integer/Cargo.toml b/roman-to-integer-13/Cargo.toml
similarity index 100%
rename from roman-to-integer/Cargo.toml
rename to roman-to-integer-13/Cargo.toml
diff --git a/roman-to-integer/src/main.rs b/roman-to-integer-13/src/main.rs
similarity index 100%
rename from roman-to-integer/src/main.rs
rename to roman-to-integer-13/src/main.rs