Update 1246-palindrome-removal.js

Author: everthis

1246-palindrome-removal.js

@@ -34,3 +34,57 @@ const minimumMoves = function (arr) {
   }
   return dp[0][n - 1]
 }
+
+// another
+
+/**
+ * @param {number[]} arr
+ * @return {number}
+ */
+ const minimumMoves = function (arr) {
+  const n = arr.length
+  
+  const dp = Array.from({ length: n }, () => Array(n).fill(n))
+ 
+  for(let i = 0; i < n; i++) dp[i][i] = 1
+  for(let i = 0; i < n - 1; i++) {
+    dp[i][i + 1] = arr[i] === arr[i + 1] ? 1 : 2
+  }
+
+  for(let size = 3; size <= n; size++) {
+    for(let i = 0; i + size - 1 < n; i++) {
+      const right = i + size - 1
+      if(arr[i] === arr[right]) dp[i][right] = dp[i + 1][right - 1]
+      for(let j = i; j < right; j++) {
+        dp[i][right] = Math.min(dp[i][right], dp[i][j] + dp[j + 1][right])
+      }
+    }
+  }
+
+  return dp[0][n - 1]
+}/**
+ * @param {number[]} arr
+ * @return {number}
+ */
+ const minimumMoves = function (arr) {
+  const n = arr.length
+  
+  const dp = Array.from({ length: n }, () => Array(n).fill(n))
+ 
+  for(let i = 0; i < n; i++) dp[i][i] = 1
+  for(let i = 0; i < n - 1; i++) {
+    dp[i][i + 1] = arr[i] === arr[i + 1] ? 1 : 2
+  }
+
+  for(let size = 3; size <= n; size++) {
+    for(let i = 0; i + size - 1 < n; i++) {
+      const right = i + size - 1
+      if(arr[i] === arr[right]) dp[i][right] = dp[i + 1][right - 1]
+      for(let j = i; j < right; j++) {
+        dp[i][right] = Math.min(dp[i][right], dp[i][j] + dp[j + 1][right])
+      }
+    }
+  }
+
+  return dp[0][n - 1]
+}