diff --git a/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.lock b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.lock
new file mode 100644
index 0000000..bea685b
--- /dev/null
+++ b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "partitioning_into_minimum_number_of_deci_binary_numbers"
+version = "0.1.0"
diff --git a/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.toml b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.toml
new file mode 100644
index 0000000..0f3f126
--- /dev/null
+++ b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "partitioning_into_minimum_number_of_deci_binary_numbers"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/1689_partitioning_into_minimum_number_of_deci_binary_numbers/src/lib.rs b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/src/lib.rs
new file mode 100644
index 0000000..ae2728c
--- /dev/null
+++ b/1689_partitioning_into_minimum_number_of_deci_binary_numbers/src/lib.rs
@@ -0,0 +1,7 @@
+pub struct Solution;
+
+impl Solution {
+    pub fn min_partitions(n: String) -> i32 {
+        n.chars().max().unwrap() as i32 - 48
+    }
+}