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dimipan80

Exam 2. Pythagorean Numbers

Sep 10th, 2014
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  1. import java.util.Scanner;
  2.  
  3. public class _2_PythagoreanNumbers {
  4.  
  5.     public static void main(String[] args) {
  6.         // TODO Auto-generated method stub
  7.         Scanner scan = new Scanner(System.in);
  8.         int count = scan.nextInt();
  9.  
  10.         int[] numbers = new int[count];
  11.         for (int i = 0; i < numbers.length; i++) {
  12.             numbers[i] = scan.nextInt();
  13.         }
  14.  
  15.         boolean isFoundPythagoreanNums = findAndPrintPythagoreanNumbers(numbers);
  16.  
  17.         if (!isFoundPythagoreanNums) {
  18.             System.out.println("No");
  19.         }
  20.     }
  21.  
  22.     private static boolean findAndPrintPythagoreanNumbers(int[] nums) {
  23.         boolean isFound = false;
  24.         for (int numA : nums) {
  25.             for (int numB : nums) {
  26.                 if (numA <= numB) {
  27.                     for (int numC : nums) {
  28.                         boolean isPythagoreanTriple = (numA * numA)
  29.                                 + (numB * numB) == numC * numC;
  30.  
  31.                         if (isPythagoreanTriple) {
  32.                             isFound = true;
  33.                             System.out.printf("%1$d*%1$d + %2$d*%2$d = %3$d*%3$d%n",
  34.                                     numA, numB, numC);
  35.                         }
  36.                     }
  37.                 }
  38.             }
  39.         }
  40.  
  41.         return isFound;
  42.     }
  43.  
  44. }
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