Create Fibonacci sequence calculator

src/main.rs

@@ -1,3 +1,24 @@
+use std::io;
+
 fn main() {
-    println!("Hello, world!");
+    println!("Rust Fibonacci: Calculate the nth element of the Fibonacci sequence.");
+    
+    let mut n = String::new();
+
+    println!("What would you like n to equal? ");
+    io::stdin()
+        .read_line(&mut n)
+        .expect("Enter an integer.");
+    
+    let n = n.trim().parse().expect("Failed to parse.");
+
+    let mut f_previous = 0;
+    let mut f = 1;
+
+    for _each in 1..n {
+        println!("{}", f + f_previous);
+        let f_placeholder = f_previous;
+        f_previous = f;
+        f = f + f_placeholder;
+    }
 }