MohammedALREAI · February 15, 2021 18:44
diff --git a/509. Fibonacci Number.ts b/509. Fibonacci Number.ts
 function fib(n: number): number {
 const arr = [1, 1];
 let counter = 3;
 while (counter <= n) {
 const nextFib = arr[0] + arr[1];
 arr[0] = arr[1];
 arr[1] = nextFib;
 counter++;
 }
 return n< 1 ? 0: n===1? 1: arr[1] 
 };
	function fib(n: number): number {
	const arr = [1, 1];
	let counter = 3;
	while (counter <= n) {
	const nextFib = arr[0] + arr[1];
	arr[0] = arr[1];
	arr[1] = nextFib;
	counter++;
	}
	return n< 1 ? 0: n===1? 1: arr[1]
	};