feat: add initial implementation of Cargo.toml, Cargo.lock, and main function with build_array method

1920_build_array_from_permutation/Cargo.lock

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

1920_build_array_from_permutation/Cargo.toml

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

1920_build_array_from_permutation/src/main.rs

@@ -0,0 +1,11 @@
+fn main() {
+    println!("Hello, world!");
+}
+
+struct Solution;
+
+impl Solution {
+    pub fn build_array(nums: Vec<i32>) -> Vec<i32> {
+        nums.iter().map(|&val| nums[val as usize]).collect()
+    }
+}