1. Given an array representing balloon heights, find the minimum number of arrows needed to burst all balloons. An arrow fired at height 'h' bursts balloons at heights 'h', 'h-1', 'h-2', and so on.

2. Have you worked as a Commis Chef 2 before?

3. What happens when you use a copy constructor in C++?

4. What is the difference between a high-priority low-risk bug and a low-priority high-risk bug?