diff --git a/README.md b/README.md
index a632e54..dd6a5cc 100644
--- a/README.md
+++ b/README.md
@@ -91,7 +91,7 @@ We encourage you to share your progress and ask questions in the Discussions sec
 | Day #42       | [Drawing Book](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-06/Day-42_Drawing-Book)                          | :white_check_mark:      |
 | Day #43       | [Area Of A Triangle](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-43_Area-Of-A-Triangle)                    | :white_check_mark:      |
 | Day #44       | [Maximum Edge Of A Triangle](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-44_Maximum-Edge-Of-A-Triangle)            | :white_check_mark:      |
-| Day #45       | [Subtract The Swapped Bits...](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage)          | :white_large_square:      |
+| Day #45       | [Subtract The Swapped Bits...](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage)          | :white_check_mark:      |
 | Day #46       | [Hot Pics Of Danny Devito](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-46_Hot-Pics-Of-Danny-Devito)              | :white_large_square:      |
 | Day #47       | [Zip It](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-47_Zip-It)                                | :white_large_square:      |
 | Day #48       | [Christmas Tree](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-07/Day-48_Christmas-Tree)                        | :white_large_square:      |
diff --git a/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/Cargo.toml b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/Cargo.toml
new file mode 100644
index 0000000..e74f10d
--- /dev/null
+++ b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "day45"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/lib.rs b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/lib.rs
new file mode 100644
index 0000000..1c6c197
--- /dev/null
+++ b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/lib.rs
@@ -0,0 +1,6 @@
+pub fn xor(x: &mut usize, y: &mut usize) -> isize {
+    *x ^= *y;
+    *y ^= *x;
+    *x ^= *y;
+    *x as isize - *y as isize
+}
diff --git a/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/main.rs b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/main.rs
new file mode 100644
index 0000000..3b1e90f
--- /dev/null
+++ b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/src/main.rs
@@ -0,0 +1,35 @@
+use std::{
+    io::{self, Write},
+    process::exit,
+};
+
+use day45::xor;
+
+fn read_usize(request: &str) -> Result<usize, std::num::ParseIntError> {
+    print!("{}", request);
+    io::stdout().flush().expect("Failed to flush stdout");
+    let mut input = String::new();
+    std::io::stdin()
+        .read_line(&mut input)
+        .expect("Failed to read from stdin");
+    input.trim().parse()
+}
+
+fn main() {
+    let mut x = match read_usize("Enter the first number: ") {
+        Ok(x) => x,
+        Err(_) => {
+            println!("Invalid input, please enter a valid number");
+            exit(1)
+        }
+    };
+    let mut y = match read_usize("Enter the second number: ") {
+        Ok(y) => y,
+        Err(_) => {
+            println!("Invalid input, please enter a valid number");
+            exit(1)
+        }
+    };
+    let result = xor(&mut x, &mut y);
+    println!("{x} - {y} = {result}");
+}
diff --git a/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/tests/examples.rs b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/tests/examples.rs
new file mode 100644
index 0000000..c4a07b2
--- /dev/null
+++ b/Week-07/Day-45_Subtract-The-Swapped-Bits-Without-Temp-Storage/day45/tests/examples.rs
@@ -0,0 +1,24 @@
+#[cfg(test)]
+mod examples {
+    use day45::xor;
+
+    #[test]
+    fn test_example() {
+        assert_eq!(xor(&mut 10, &mut 41), 31);
+    }
+
+    #[test]
+    fn test_example2() {
+        assert_eq!(xor(&mut 69, &mut 420), 351);
+    }
+
+    #[test]
+    fn test_example3() {
+        assert_eq!(xor(&mut 12345, &mut 890412), 878067);
+    }
+
+    #[test]
+    fn test_example4() {
+        assert_eq!(xor(&mut 2, &mut 1), -1);
+    }
+}