Can anyone tell me actually whats types of MATH knowledge needs in competitive programming from very basic not advance please. My math knowledge is actually very very low like you can assume I just can add, sub, multiply, and division. I am very depressed about it because when I failed to solved a problem and see its tag name like CF(C,D) "math" or math/sorting/ or something related to math etc. Recently I made a plan that I spend at least 2 hours or above hours for learning math everyday. So some experienced person please suggest me a book or tuitorial or link where I can learn the basic math concepts thats need in competitive programming.
Thanks a lot for read the long story. :) Sorry for my poor english.

Hello, good people. Hope you all are well. :) How to increase my thinking ability? I think day by day my thinking ability not so much increased. Yeah I know I am weak at math and lot of lackings in high school math. Let me tell an example about my thinking ability, when I open a problem in like cf B type problem my mates understand the problem very quickly like 10-15 minutes but I didnt understand the problem even in 1-2 hours. I know here many people have good knowledge about math and also competitive programming. So for competitive programming purpose please give me some advice so that I can increase my logical thinking ability. :) Thanks a lot for read my long boring post.

Sorry for my so so poor English :)

Can anyone please explain me easier way the question (question link given below). I didnt understand the question since my geometry knowledge is very low. Also It would be great if you explain also the solution for the problem actually I didnt solve any problem from geometry.

Sorry for my poor English. Thanks In Advance https://mirror.codeforces.com/contest/1096/problem/C

Hy all, :) I am struggling to learn basic dp for a while. Its pretty hard for me to understand rcursion. As we all know recursion is the mother of dynamic programming. So, It would be great if you suggest me some good resources for beginner where you learned firstly dp or suggest some classical dp problem with solution so that I will understand the concept or suggest any other way :) Thanks a lot :)

Can anyone tell me some basic Geometry Formula that are very usefull for competitive programmer. Thanks in advance. :)

Seems like the range is huge. How can I optimizely solve it. Any hint would be greatly appreciated. Thanks. :) Problem Link: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1474

Recently I have learned KMP. I am trying to solve the problem for a while but cant understand, What should be my first approach? Can anyone explain me step by step. Any hint would be greatly appreciated.

Problem Link: http://lightoj.com/volume_showproblem.php?problem=1268 Those Who haven't any Lightoj account dont worry just visit the pdf link then you will see the problem statement. Pdf Link: http://lightoj.com/volume_showproblem.php?problem=1268&language=english&type=pdf

Sorry for my poor English. Thanks a lot.

Recently I have learned topological sort using defth first search(dfs). I am trying to solve the problem for a while but cant understand, What should be my first approach? Can anyone explain me step by step. Any hint would be greatly appreciated. Thanks. :) Problem Link: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2001

Is that a better way to solve USACO traing gateway problem before doing CF contest? As you see I am a novice solver. After done one contest I feel I am not much skillfull here. I feel I should do something before doing this type of contest. It will be definitely great If you guys share your beginner level strategy that I can follow. Thanks a ton. Sorry for my poor English.