I usually make observations whenever i am not able to solve some problem.
In round 682 , I found that problem C,D,E were not solved by many people but after hints and editorials was given lot of people upsolved them.
Let us take problem E :
I was not able to solve this problem on my own . But if we see the editorial , it's just based on simple observation that sum of elements should have bit higher than border elements . Prove for efficiency is also very easy.
I did not asked these questions to myself while solving the problem.
Usually i see that i have solve lot problems before i am able to solve some problem of similar type.But this way of practicing will take lot of time to become good coder.
You see that understanding the solution is a cakewalk , but coming up by yourself is difficult . Is this due to laziness i.e out brain not used to it ?
So i ask people for their opinions on it.
I would also like to hear the suggestions of people of all colors (from unrated,newbie to LGM).
I have watched stream of these red coders and i see that they solve problems without much thinking but i am sure this was not the case when they were 2 to 3 year experienced in the field.
I genuinely want you people opinions. After getting around -15 votes it will automatically become invisible from recent actions.
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