Urutan Terpanjang

2025-05-16 09:46:21 +07:00 · 2025-05-16 09:46:21 +07:00 · c951617d7b
commit c951617d7b
1 changed files with 34 additions and 0 deletions
--- a/34
+++ b/34
@ -0,0 +1,34 @@
+def longest_increasing_subsequence(arr):
+    n = len(arr)
+        if n == 0:
+                return []
+
+                    # dp[i] menyimpan panjang LIS yang berakhir di index i
+                        dp = [1] * n
+                            prev = [-1] * n  # untuk melacak jalur LIS
+
+                                for i in range(1, n):
+                                        for j in range(i):
+                                                    if arr[j] < arr[i] and dp[j] + 1 > dp[i]:
+                                                                    dp[i] = dp[j] + 1
+                                                                                    prev[i] = j
+
+                                                                                        # Cari index dari elemen terakhir pada LIS
+                                                                                            max_len = max(dp)
+                                                                                                last_index = dp.index(max_len)
+
+                                                                                                    # Rekonstruksi LIS
+                                                                                                        lis = []
+                                                                                                            while last_index != -1:
+                                                                                                                    lis.append(arr[last_index])
+                                                                                                                            last_index = prev[last_index]
+
+                                                                                                                                lis.reverse()
+                                                                                                                                    return lis
+
+
+                                                                                                                                    # Contoh penggunaan
+                                                                                                                                    data = [10, 22, 9, 33, 21, 50, 41, 60]
+                                                                                                                                    hasil = longest_increasing_subsequence(data)
+                                                                                                                                    print("Urutan meningkat terpanjang:", hasil)
+