Add ru version (#1865)

* Add Russian docs site baseline

* Add Russian localized codebase

* Polish Russian code wording

* Update ru code translation.

* Update code translation and chapter covers.

* Fix pythontutor extraction.

* Add README and landing page.

* placeholder of profiles

* Use figures of English version

* Remove chapter paperbook

ru/codes/rust/chapter_hashing/simple_hash.rs

@@ -0,0 +1,70 @@
+/*
+ * File: simple_hash.rs
+ * Created Time: 2023-09-07
+ * Author: night-cruise (2586447362@qq.com)
+ */
+
+/* Аддитивное хеширование */
+fn add_hash(key: &str) -> i32 {
+    let mut hash = 0_i64;
+    const MODULUS: i64 = 1000000007;
+
+    for c in key.chars() {
+        hash = (hash + c as i64) % MODULUS;
+    }
+
+    hash as i32
+}
+
+/* Мультипликативное хеширование */
+fn mul_hash(key: &str) -> i32 {
+    let mut hash = 0_i64;
+    const MODULUS: i64 = 1000000007;
+
+    for c in key.chars() {
+        hash = (31 * hash + c as i64) % MODULUS;
+    }
+
+    hash as i32
+}
+
+/* XOR-хеширование */
+fn xor_hash(key: &str) -> i32 {
+    let mut hash = 0_i64;
+    const MODULUS: i64 = 1000000007;
+
+    for c in key.chars() {
+        hash ^= c as i64;
+    }
+
+    (hash & MODULUS) as i32
+}
+
+/* Хеширование с циклическим сдвигом */
+fn rot_hash(key: &str) -> i32 {
+    let mut hash = 0_i64;
+    const MODULUS: i64 = 1000000007;
+
+    for c in key.chars() {
+        hash = ((hash << 4) ^ (hash >> 28) ^ c as i64) % MODULUS;
+    }
+
+    hash as i32
+}
+
+/* Driver Code */
+fn main() {
+    let key = "Hello Algo";
+
+    let hash = add_hash(key);
+    println!("Хеш-сумма сложением = {hash}");
+
+    let hash = mul_hash(key);
+    println!("Хеш-сумма умножением = {hash}");
+
+    let hash = xor_hash(key);
+    println!("Хеш-сумма XOR = {hash}");
+
+    let hash = rot_hash(key);
+    println!("Хеш-сумма с циклическим сдвигом = {hash}");
+}