Added solution to problem 3

Benchmark.ts

@@ -31,7 +31,7 @@ enum BenchmarkOptions{runSpecific = 1, runAllShort, runAll, exit, size};
 
 
 export class Benchmark{
-	private static tooLong = [];
+	private static tooLong: number[] = [];
 	//The driver function for the benchmark selection
 	public static benchmarkMenu(): void{
 		let selection: BenchmarkOptions = BenchmarkOptions.size;