Question

How to find all pythagorean triples (a^2 + b^2 = c^2) from an array in C#

Answer 1

using System;
 
public class Program
{
    private static void PrintPythagoreanTriples(int[] arr) {
        int size = arr.Length;
 
        for (int i = 0; i < size - 2; i++) {
            for (int j = i + 1; j < size - 1; j++) {
                for (int k = i + 2; k < size; k++) {
                    int a = arr[i];
                    int b = arr[j];
                    int c = arr[k];
                    if (a * a + b * b == c * c) {
                        Console.WriteLine(a + " " + b + " " + c);
                    }
                }
            }
        }
    }
    public static void Main(string[] args)
    {
        int[] arr = new int[] {2, 3, 4, 5, 6, 7, 8, 9, 10};
 
        PrintPythagoreanTriples(arr);
    }
}
 
 
 
 
/*
run:
   
3 4 5
6 8 10
   
*/

 

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