Had to copy but thoda thoda samajh aya , i need to fucking up my dp game guys, aight babes on my way to master dp hell yeah

Author: ChSatyaSavith

1027. Longest Arithmetic Subsequence.py

@@ -0,0 +1,11 @@
+class Solution:
+    def longestArithSeqLength(self, nums: List[int]) -> int:
+        
+        d = {}
+
+        for i in range(len(nums)):
+            for j in range(i+1,len(nums)):
+                diff = nums[j]-nums[i]
+                d[j,diff] = d.get((i,diff),1) +1
+
+        return max(d.values())