Hello cf coders , I am preparing for my placement I can solve div2A problems at cf and rarely some problem of div2B .Also like every other coder I tried to get 3/4 stars at codechef but everyone suggested codechef doesnt help that good for coding.So I am now at leetcode.

So could any possible Indian coder suggest how should I prepare for my placement coding rounds (belongs to Tier-3 clg) I am active at Leetcode.Plz guide.

After completing Div2A problems from A2OJ ,for completion of DIV2B how should we prepare as it requires good knowledge of data structure and algorithms ,anyone who has completed DIV2 B from A2OJ ladders please guide,thanks for the help.

Can anyone tell how to see time complexity before coding for a particular problem , and how to aproach on the basis of that , I have seen videos regarding this on youtube but still get confused and end up getting TLE in the codes.

  Hello The j-th number in the i-th row is the number of times the j-th light of the i-th row of the grid is pressed. I cant understand such problems can anyone suggest something?

I do need to solve div B problems and sometimes in contest B problem is easier but I am not able to know what the problem wants me to do ,like not able to understand how we are getting the ouput for a particular input , what to do for this ? Also any strategy so that I may be able to solve div B problems I find it tough.

Hello all , I would like to take opinions on how to get better at implementing code apart from regular practise ?