1. Arrange the text into a justifiable format with fix length.
The question was easy to level but very long as you have to count the spaces in between and then create new sentences depending upon the length passed into the function. I implemented almost all the conditions and explained the implementations and conditions but still was not able to complete the output.
2. Create an LRU cache and show it in action.
Implemented the whole logic and showed them a working prototype. Looked kind of impressed but the last feedback was not good.