using System; using System.Collections.Generic; public class ZeroSumCombinations { public static void Main() { int[] numbers = { 2, -2, 3, -3, 4 }; // Example input // Pairs for (int i = 0; i < 5; i++) { for (int j = i + 1; j < 5; j++) { if (numbers[i] + numbers[j] == 0) { Console.WriteLine($"Pair: {numbers[i]}, {numbers[j]}"); } } } // Triples for (int i = 0; i < 5; i++) { for (int j = i + 1; j < 5; j++) { for (int k = j + 1; k < 5; k++) { if (numbers[i] + numbers[j] + numbers[k] == 0) { Console.WriteLine($"Triple: {numbers[i]}, {numbers[j]}, {numbers[k]}"); } } } } // Quadruples for (int i = 0; i < 5; i++) { for (int j = i + 1; j < 5; j++) { for (int k = j + 1; k < 5; k++) { for (int l = k + 1; l < 5; l++) { if (numbers[i] + numbers[j] + numbers[k] + numbers[l] == 0) { Console.WriteLine($"Quadruple: {numbers[i]}, {numbers[j]}, {numbers[k]}, {numbers[l]}"); } } } } } // Quintuples if (numbers[0] + numbers[1] + numbers[2] + numbers[3] + numbers[4] == 0) { Console.WriteLine($"Quintuple: {numbers[0]}, {numbers[1]}, {numbers[2]}, {numbers[3]}, {numbers[4]}"); } } }