HouseRobber.java file created (dubesar#607)

Author: Snehagupta24

Dynamic Programming/HouseRobber.java

@@ -0,0 +1,29 @@
+package DP;
+
+// https://leetcode.com/problems/house-robber/
+public class HouseRobber {
+    public int rob(int[] nums) {
+        if(nums.length == 0) {
+            return 0;
+        }
+        
+        if(nums.length == 1) {
+            return nums[0];
+        }
+        
+        if(nums.length == 2){
+            Math.max(nums[0],nums[1]);
+        }
+        
+        int n = nums.length;
+        int dp[] = new int[n];
+        dp[0] = nums[0];
+        dp[1] = Math.max(nums[0], nums[1]);
+        
+        for(int i=2; i<n; i++){
+            dp[i] = Math.max(dp[i-1], (dp[i-2]+nums[i]));
+        }
+        
+        return dp[n-1];
+    }
+}