PagalavanPagal66's blog

I become Expert....!
By PagalavanPagal66, 9 months ago, In English

After getting negative contribution to my pervious blog (Asking about will I go to specialist by 2023), I have raged up my problem solving limits and become Blue now...!

Topic to cover mostly :

1) Maths — Combinatorics, Modular arithmetics, Prime properties

2) Prefix & Suffix optimizations

3) Basic DP , Recursion , Graph , Tree implementations

4) Implementation skills — You have to ready to convert your thought process into code easily

5) STL usage is very important

6) Binary search

7) Bit manipulations

Tips :

1) Don't try the topics you have learned in recent days into all the problems

2) Think of the solution without thinking any algorithms — just use that algorithms if you need optimization or it is basic need in your approach

3) Spend quality of time in each and every problem you solve — I have spent a whole day for a 1700 problem in my practice session before ICPC regionals

4) Enhance your debugging skills

5) Don't give up and keep trying — a single push can lift you beyond your imaginary level — For me that push is ICPC regionals

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9 months ago, # |
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Auto comment: topic has been updated by PagalavanPagal66 (previous revision, new revision, compare).

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9 months ago, # |
← Rev. 2   Vote: I like it +59 Vote: I do not like it

bro relax , you will probably get back to specialist in the next contest

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    9 months ago, # ^ |
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    bro relax , you will probably get back to pupil in the next contest

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      9 months ago, # ^ |
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      bro relax , we will all go back to pupil in the next contest

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        9 months ago, # ^ |
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        bro relax ,I will go back to newbie in the next context.

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    9 months ago, # ^ |
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    Maybe — But I never stop to stay down...! Anyways...! Good luck in your journey

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9 months ago, # |
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You forget Binary Search

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9 months ago, # |
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Auto comment: topic has been updated by PagalavanPagal66 (previous revision, new revision, compare).

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9 months ago, # |
← Rev. 4   Vote: I like it +1 Vote: I do not like it

Let people say whatever they want to. It's always special and joyful to reach a new Color. Congratulations!! Miles to Go!! Keep Enjoying the Journey!

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9 months ago, # |
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Personal Opinion, You don't need to be advanced in graph programming to get to blue

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    9 months ago, # ^ |
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    How much knowledge is needed then?

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      9 months ago, # ^ |
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      understand bfs/dfs, know dijkstra logic. and know how to work with graphs, traversing etc but no advanced algo

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    9 months ago, # ^ |
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    Yeah...! But basic graph topics helps alot in getting blue, Div 4/3 last 2 questions are literally based on that majorly.

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9 months ago, # |
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Any tips about how and from where to do CP maths?

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    9 months ago, # ^ |
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    Refer geeks for geeks & CP algorithms for this kind of maths stuffs

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      9 months ago, # ^ |
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      That'll be sufficient?

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        9 months ago, # ^ |
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        You have to experience alot and that will be the best way to learn. Like reading editorials after every codeforces contest.

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        9 months ago, # ^ |
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        for getting out of newbie yes, after that we'll talk about it

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9 months ago, # |
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Hey bro, congratulation.

can you help me with this problem statement -> https://mirror.codeforces.com/contest/1879/problem/C

I didn't understand what this problem is asking.

Mostly this statement -> the number of different shortest sequences of operations that make s alternating. Two sequences of operations are different if in at least one operation, the chosen integer i is different in these two sequences.

My english is not so good, i didn't understand what this problem is saying. please help.

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9 months ago, # |
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congrats broo)) My CP journey is so sad (

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9 months ago, # |
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Congrats, keep going :D

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9 months ago, # |
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Congratulations! Reaching blue when you weren't even sure if you would reach cyan such a short time ago is really impressive!

2) Think of the solution without thinking any algorithms — just use that algorithms if you need optimization or it is basic need in your approach

I do have some qualms about this tip though. Perhaps it is true for really hard problems, but thinking stuff like "Can I do binary search? Is there a DP recurrence here?" has helped me get unstuck on many problems. I think it can be really helpful in certain situations.

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9 months ago, # |
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I also became expert!

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9 months ago, # |
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Congrats Broo

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9 months ago, # |
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orz

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9 months ago, # |
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Congrats!!! I just became Specialist only, so I will work hard to get to blue one day too!

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9 months ago, # |
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how did you reach expert with only 9 1600 problems solved? Do you practice on some other platforms too?

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