Merge pull request neetcode-gh#1215 from BlacKnight-RH/feature/ts-solution-for-1299-Replace-Elements-with-Greatest-Element-on-Right-Side

[ADD] Add ts solution for 1299-Replace-Elements-with-Greatest-Element…

Author: Ahmad-A0

typescript/1299-Replace-Elements-With-Greatest-Element-On-Right-Side.ts

@@ -0,0 +1,12 @@
+function replaceElements(arr: number[]): number[] {
+    let currMax = -1;
+    
+    for(let i = arr.length -1 ; i >= 0; i--) {
+        let newMax = Math.max(currMax, arr[i]);         
+        arr[i] = currMax;
+        
+        currMax = newMax;
+    }
+    
+    return arr;
+};