Today,i was doing my usual stuffs,practicing for div2c in order to reach specialist on my main(i am currently 1173).I got bored so i decided to do some analysis on codedrills.After i ran the analysis,i found out that i was not that good on my early days compared to my friends.In fact,i believe i was under average.I just wondered whether i would be a red if i try hard enough in the future.

One of the struggle that i had is mentioned in the title.Another one is about vectors.i remember asking someone why i should vectors when i have a regular array.The last one is probably knapsack.i spent like 1 and a half year to just remember how to implement knapsack.Recently,i just become fluent at knapsack lol.

Also worth mentioning,i post this blog using this account because its my first account so u can immediately see what im doing in the early days.