Merge pull request #1756 from Lustellz/main

[Lustellz] WEEK 02 problems

Author: SamTheKorean

climbing-stairs/Lustellz.ts

@@ -0,0 +1,9 @@
+// week2 goal
+// not knowing how to express, I googled and referenced a bit
+function climbStairs(n: number): number {
+    let stairArray: number[] = [1,2]
+    for(let i = 2;i<n; i++){
+        stairArray.push(stairArray[i-1]+stairArray[i-2])
+    }
+    return stairArray[n-1]
+};

top-k-frequent-elements/Lustellz.ts

@@ -0,0 +1 @@
+// frequency is k times

valid-anagram/Lustellz.ts

@@ -0,0 +1,14 @@
+// week 2's goal
+// only focusing on not using for... not a good approach :(
+
+function isAnagram(s: string, t: string): boolean {
+    if(s.length !== t.length) return false
+    let sArray : string[] = s.split('').sort()
+    s = sArray.join('')
+    let tArray : string[] = t.split('').sort()
+    t = tArray.join('')
+    if(s === t) return true
+    else return false
+};
+
+// reflection: not to be hurry & have more time for pondering