C#: Wrong answer when finding "cool" numbers.
- by user300484
Hello you all! In my application, a "cool" number is a number that is both a square and a cube, like for example: 64 = 8^2 and 64 = 4^3. My application is supposed to find the number of "cool numbers" between a range given by the user. I wrote my code and the application runs fine, but it is giving me the wrong answer. Can you help me here please? for example:
IMPUT
1
100
OUTPUT
1
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
double a = Convert.ToDouble(Console.ReadLine()); // first number in the range
double b = Convert.ToDouble(Console.ReadLine()); // second number in the range
long x = 0;
for (double i = a; i <= b; i++)
{
double cube = 1.0 / 3.0;
double cuad = 1.0 / 2.0;
double crt = Math.Pow(i, cube); // cube root
double sqrt = Math.Pow(i, cuad); // square root
if ((crt * 10) % 10 == 0 || (sqrt * 10) % 10 == 0) // condition to determine if it is a cool number.
x++;
}
Console.WriteLine(x);
Console.ReadLine();
}
}
}
