climbing-stairs solution

Author: Moonjonghoo

climbing-stairs/moonjonghoo.js

@@ -0,0 +1,16 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var climbStairs = function (n) {
+  let dp = new Array(n + 1);
+  dp[1] = 1;
+  dp[2] = 2;
+  for (let i = 3; i <= n; i++) {
+    dp[i] = dp[i - 1] + dp[i - 2];
+  }
+  return dp[n];
+};
+
+console.log(climbStairs(2));
+console.log(climbStairs(3));