Binary World | Debabrata Guha | Computer Science

   

  For any type of query or doubt regarding any solution or if you are not able to understand the solution or if you have any other alternative solution that you want to show me, You can directly comment on the corresponding class video in youtube. So that everyone can participate in that discussion. But remember I will use the only those techniques that we have learned so far. Exercise has been built in that way. It does not involve any knowledge on  unknown topics. When I was a student I missed this sequential way of exercise. I tried to build the exercise on what you have learnt recently. So that you can focus on recently learnt topic only and a bit revise of earlier chapters. As an example, this is the solution of chapter 4 and I have used only the techniques learned till chapter 4. So if you are not able to crack any logic, that means you have to spend more time on "Group by" and earlier topics.  So keep that in mind while commenting your doubts in the corresponding y...