feat: add TOPIC5 question

add right rotation by 1 element

Author: ExploitEngineer

Topic5/index.js

@@ -126,3 +126,13 @@ for (let i = 0; i < arr11.length - 1; i++) {
 }
 arr11[arr11.length - 1] = copy;
 console.log(arr11);
+
+// right rotation by 1 element
+let arr12 = [1, 2, 3, 4, 5];
+let copyarr12 = arr12[arr12.length - 1];
+
+for (let i = arr.length - 1; i > 0; i--) {
+  arr12[i] = arr12[i - 1];
+}
+arr12[0] = copyarr12;
+console.log(arr12);