add: #264 house robber

Author: sukyoungshin

house-robber/suKyoung.ts

@@ -0,0 +1,32 @@
+// 1번풀이 (brute force)
+// function rob(nums: number[]): number {
+//   const n = nums.length;
+//   if (n === 1) return nums[0];
+//   if (n === 2) return Math.max(nums[0], nums[1]);
+
+//   const dp: number[] = [];
+//   dp[0] = nums[0];
+//   dp[1] = Math.max(nums[0], nums[1]);
+
+//   for (let i = 2; i < n; i++) {
+//     dp[i] = Math.max(dp[i - 1], dp[i - 2] + nums[i]);
+//   }
+
+//   return dp[n - 1];
+// }
+
+// 2번풀이 (dp)
+function rob(nums: number[]): number {
+    if (nums.length <= 1) return nums[0] ?? 0;
+  
+    const dp: number[] = [];
+    dp[0] = nums[0];
+    dp[1] = Math.max(nums[0], nums[1]);
+  
+    for (let i = 2; i < nums.length; i++) {
+      dp[i] = Math.max(dp[i - 1], dp[i - 2] + nums[i]);
+    }
+  
+    return dp[nums.length - 1];
+  }
+