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public long FibonacciNumber(long n)
{
if (n > 92)
throw new ArgumentOutOfRangeException("n", "Fib(>92) will cause a 64-bit integer overflow.");
if (n < -92)
throw new ArgumentOutOfRangeException("n", "Fib(<-92) will cause a 64-bit integer overflow.");
var sqrt5 = Math.Sqrt(5);
var bigPhi = (sqrt5 + 1) / 2;
import 'package:flutter/material.dart';
final Color darkBlue = Color.fromARGB(255, 18, 32, 47);
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override