feat: add initial implementation of Cargo.toml and Cargo.lock files along with main function and Solution struct

2894_divisible_and_non_divisible_sums_difference/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "divisible_and_non_divisible_sums_difference"
+version = "0.1.0"

2894_divisible_and_non_divisible_sums_difference/Cargo.toml

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+[package]
+name = "divisible_and_non_divisible_sums_difference"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

2894_divisible_and_non_divisible_sums_difference/src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}
+
+struct Solution;
+
+impl Solution {
+    pub fn difference_of_sums(n: i32, m: i32) -> i32 {
+        let (dividable, undividable): (Vec<i32>, Vec<i32>) =
+            (1..(n + 1)).partition(|&val| val % m == 0);
+
+        undividable.iter().sum::<i32>() - dividable.iter().sum::<i32>()
+    }
+}