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03. Combinations

Aug 6th, 2022
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  1. package nestedLoops;
  2.  
  3. import java.util.Scanner;
  4.  
  5. public class P03Combinations {
  6.     public static void main(String[] args) {
  7.         Scanner scanner = new Scanner(System.in);
  8.  
  9.         int n = Integer.parseInt(scanner.nextLine());
  10.  
  11.         //0 - n
  12.         int validCombCount = 0;
  13.         for (int i = 0; i <= n; i++) {
  14.             for (int j = 0; j <= n; j++) {
  15.                 for (int k = 0; k <= n; k++) {
  16.                     int sum = i + j + k;
  17.                     if (sum == n) {
  18.                         validCombCount++;
  19.                     }
  20.                 }
  21.             }
  22.         }
  23.        
  24.         System.out.println(validCombCount);
  25.     }
  26. }
  27.  
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