feat: add initial implementation of Cargo.toml, Cargo.lock, and lib.rs for final_value_of_variable_after_performing_operations function

2011_final_value_of_variable_after_performing_operations/Cargo.lock

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

2011_final_value_of_variable_after_performing_operations/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "final_value_of_variable_after_performing_operations"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

2011_final_value_of_variable_after_performing_operations/src/lib.rs

@@ -0,0 +1,17 @@
+pub struct Solution;
+
+impl Solution {
+    pub fn final_value_after_operations(operations: Vec<String>) -> i32 {
+        let mut result = 0;
+
+        for op in operations {
+            if op.contains('+') {
+                result += 1;
+            } else {
+                result -= 1;
+            }
+        }
+
+        result
+    }
+}