PayPal interview questions

1. There is a pistol and two bullet in it both are placed at alternative cylinders and you flip the cylinder and then shoot. Person is still alive so you give him chance to choose if he want you to flip or shoot directly. What will he choose and why? 2. How can you optimize the dispute resolution workflow on PayPal's platform? When a customer raises a dispute through their bank, it costs PayPal three times more. How can you reduce these costs while improving the overall dispute resolution process? 3. Swiggy currently partners with 100 restaurants and 100 delivery partners. The business decides to onboard 100 additional restaurants, leading to increased delivery times and cold food, resulting in a growing number of customer complaints. How would you enhance the customer experience?

Couple of system design problems, DS Algo