asd

fordulo_3/Program/PermutationGenerator.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Program
+{
+    class PermutationGenerator
+    {
+        public Dictionary<string, List<int[]>> GroupedPermutations { get; private set; }
+        private HashSet<string> uniquePermutations;
+
+        public PermutationGenerator()
+        {
+            GroupedPermutations = new Dictionary<string, List<int[]>>();
+            uniquePermutations = new HashSet<string>();
+        }
+
+        public void GeneratePermutations(int[] digits, int length)
+        {
+            GeneratePermutations(digits, new int[length], 0);
+        }
+
+        private void GeneratePermutations(int[] digits, int[] current, int index)
+        {
+            if (index == current.Length)
+            {
+                if (current[0] != 0) // Avoid permutations starting with 0
+                {
+                    AddPermutation(current);
+                }
+                return;
+            }
+
+            for (int i = 0; i < digits.Length; i++)
+            {
+                current[index] = digits[i];
+                GeneratePermutations(digits, current, index + 1);
+            }
+        }
+
+        private void AddPermutation(int[] permutation)
+        {
+            var key = string.Concat(permutation.OrderBy(x => x));
+            var permutationString = string.Join("", permutation);
+
+            if (!uniquePermutations.Contains(permutationString))
+            {
+                uniquePermutations.Add(permutationString);
+
+                if (!GroupedPermutations.ContainsKey(key))
+                {
+                    GroupedPermutations[key] = new List<int[]>();
+                }
+                GroupedPermutations[key].Add((int[])permutation.Clone());
+            }
+        }
+
+        public void PrintGroupedPermutations()
+        {
+            foreach (var group in GroupedPermutations)
+            {
+                Console.WriteLine($"Group: {group.Key}");
+                foreach (var permutation in group.Value)
+                {
+                    Console.WriteLine(string.Join("", permutation));
+                }
+                Console.WriteLine();
+            }
+        }
+    }
+}