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 Question | Solutions | Videos 
 | :---:   | :-: | :-: 
+|Design Online Auction System |[Solution-1](https://github.com/MayV/OnlineAuctionSystem) | [Video-1](https://youtu.be/5fdKUzfMk4E)  | 
 |Design True caller |[Solution-1](https://github.com/gopalbala/truecaller) | [Video-1](https://www.youtube.com/watch?v=3KSLh_hvwtQ)  | 
 |Design Snake and Ladder Game| [Solution-1](https://github.com/gopalbala/snake-and-ladder) [Soluton-2](https://workat.tech/machine-coding/article/how-to-design-snake-and-ladder-machine-coding-ehskk9c40x2w#:~:text=%2D%20The%20board%20will%20have%20100,random%20number%20on%20rolling%20it.&text=%2D%20After%20the%20dice%20roll%2C%20if,contains%20some%20snakes%20and%20ladders.) | [Video-1](https://www.youtube.com/watch?v=5LDfqzXwxxU&t=2041s) [Video-2](https://www.youtube.com/watch?v=OutDY_ICb80)|  | 
 |Design Bill Sharing/Expense Sharing like Splitwise| [Solution-1](https://github.com/gopalbala/billsharing)  [Solution-2](https://workat.tech/machine-coding/article/how-to-design-splitwise-machine-coding-ayvnfo1tfst6)| [Video-1](https://www.youtube.com/watch?v=2Fz_LQJuq7s)