rust version for 54_Letter (#712)

* rust translation for 54_Letter

* rust translation 54_Letter

54_Letter/rust/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "letter"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.8.4"
+

54_Letter/rust/README.md

@@ -0,0 +1,3 @@
+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [Rust](https://www.rust-lang.org/)

54_Letter/rust/src/main.rs

@@ -0,0 +1,46 @@
+use rand::Rng;
+use std::cmp::Ordering;
+use std::io;
+
+fn main() {
+    println!(
+        "{: >40}\n{: >57}\n\n\n",
+        "LETTER", "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY"
+    );
+    println!("LETTER GUESSING GAME\n");
+    println!("I'LL THINK OF A LETTER OF THE ALPHABET, A TO Z.");
+    println!("TRY TO GUESS MY LETTER AND I'LL GIVE YOU CLUES");
+    println!("AS TO HOW CLOSE YOU'RE GETTING TO MY LETTER.");
+
+    loop {
+        let gen_character = rand::thread_rng().gen_range('A'..='Z'); // generates a random character between A and Z
+        let gen_character = String::from(gen_character);
+        println!("\nO.K., I HAVE A LETTER.  START GUESSING.");
+        for i in 0..999999 {
+            println!("\nWHAT IS YOUR GUESS?");
+
+            let mut guess = String::new();
+
+            io::stdin()
+                .read_line(&mut guess)
+                .expect("Failed to read the line");
+            println!("{}", gen_character);
+            let guess = guess.trim().to_ascii_uppercase();
+            match guess.cmp(&gen_character) {
+                Ordering::Less => println!("\nTOO LOW.  TRY A HIGHER LETTER."),
+                Ordering::Greater => println!("\nTOO HIGH.  TRY A LOWER LETTER."),
+                Ordering::Equal => {
+                    println!("\nYOU GOT IT IN {} GUESSES!!", i + 1);
+                    if i >= 4 {
+                        println!("BUT IT SHOULDN'T TAKE MORE THAN 5 GUESSES!\n");
+                    } else {
+                        println!("{}", std::iter::repeat("💖").take(15).collect::<String>());
+                        println!("GOOD JOB !!!!!");
+                    }
+                    break;
+                }
+            }
+        }
+        println!("\nLET'S PLAY AGAIN.....");
+    }
+}