Day 0 solver prints out 50 Fibonacci numbers

crates/day_0/src/day_0.rs

@@ -22,7 +22,9 @@ impl Solver for Day0
 
 	fn solve(&mut self, _input: String) -> Result<u64, String> 
 	{
-		
+		let fibs = gen_fib_seq(50, std::i64::MAX / 2);
+		println!("fib nums:");
+		print_fibs(fibs);
 		Ok(0)
 	}
 
@@ -38,4 +40,38 @@ impl Day0
 	{
 		Day0 {}
 	}
+}
+
+// Helpers
+/// stop_after: the number of fib values to generate
+/// max_val: the maximum fib value to generate. Forces the function to 
+/// return even if stop_after is not met.
+fn gen_fib_seq(stop_after: i32, max_val: i64) -> Vec<i64>
+{
+	let mut a: i64 = 1;
+	let mut b: i64 = 1;
+	let mut nums: Vec<i64> = vec![];
+	nums.push(a);
+	for _ in 0..stop_after -1
+	{
+		nums.push(b);
+		let t = b;
+		b = a + b;
+		a = t;
+
+		if b >= max_val
+		{
+			break;
+		}
+	}
+
+	nums
+}
+
+fn print_fibs(fibs: Vec<i64>)
+{
+	for (i, f) in fibs.iter().enumerate()
+	{
+		println!("{}: {}", i + 1, f);
+	}
 }