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Practice in the CodeChef monthly coding contests, and master competitive programming. Get all the information about the rated coding challenges hosted every week.
- May Long Challenge 2021 | A Contest Like No Other! | CodeChef
We’re halfway through May, and the Long Challenge is done...
- Practice & Learn | SnackDown - CodeChef
Practice Contest. To help you prepare and be ready, we have...
- Get all the details about ICPC Contest - CodeChef
Get all the details about the most prestigious programming...
- CodeChef - Learn and Practice Coding with Problems
CodeChef is an excellent platform that offers a wide range...
- Competitive Coding | Guide to Competitive Programming - CodeChef
Get an understanding about competitive programming with...
- May Long Challenge 2021 | A Contest Like No Other! | CodeChef
Learn about the ICPC, the oldest and most prestigious programming contest in the world, organized by CodeChef. Find out how to participate in the India regionals, the contest structure, the prizes, and the Go for Gold initiative.
CodeChef is a platform for beginners to learn and practice coding with interactive courses and problems. It also conducts contests and offers data analytics courses.
- Online Programmming Contests
- Primes
- Basic Number Theory
- Power of Bits
- Binary Search
- The Beauty of Standard Template Library of C++
- Graphs
- Greedy Algorithms
- Dynamic Programming
- GeneratedCaptionsTabForHeroSec
You write codes and submit them online . The judge runs your code and checks the output of your program for several inputs and gives the result based on your program’s outputs.You must follow exact I/O formats. For example, do not print statements like : “please enter a number”, etc :P Each problem has constraints: Properly analyse the constraints ...
Prime Check ( O(log n) also possible read about miller-rabbin )FactorizationNumber of factorsSum of factorsModulo operations and Inverse moduloHow to compute a ^ b % p in O(log b), where p is primeFind Nth fibonacci number modulo p [Read Matrix exponential]n! % p ( what if we have lots of test cases )Numbers are stored as binary bits in the memory so bits manipulation are alway faster.Bitwise 'or' operator : |Bitwise 'and' operator : &Bitwise 'xor' operator : ^Try this : http://codeforces.com/problemset/problem/431/DUnderstand the concept of binary search. Both left_binary_search and right_binary_search. Try to implement it on your own. Look at others implementation.sample implementation : this can be modified in a variety of ways, as required in the problemPractice problems:Vectors in one dimension and two dimension http://www.codechef.com/MAY14/problems/CHEFBMSolve: http://www.codechef.com/MAY14/problems/COMPILER Now use stacks to taste its beauty and solve the following problem too: http://codeforces.com/problemset/problem/344/DQueue: http://www.spoj.com/problems/DONALDO/Priority Queue: http://codeforces.com/gym/100247/problem/I[[First try without using Priority queue]]Try the following problems :Def : Think graphs as a relation between node , related nodes are connected via edge.How to store a graph ? ( space complexity )You must know the following terminologies regarding Graphs :Greedy Algorithms are one of the most intuitive algorithms. Whenever we see a problem we first try to apply some greedy strategy to get the answer(we humans are greedy, aren’t we :P ? ). Read thistutorial for further insight or you can directly attempt the problems most of the greedy approaches are quite simple and easy to understand/formulate.But ...
In my view this is one the most important topicin competitive programming. The problems are simple and easy to code but hard to master. Practice as many DP problems as much possible. You must go through thistopcoder tutorial and you must try to solve all the problems listed below in this doc. (These are basic problems and some with few variations t...
Learn how to get started with competitive coding and participate in online contests like CodeChef. Find out the prerequisites, languages, sources, tips and tricks for solving problems and improving your skills.
May 18, 2021 · Read about the problems, ranklists and learning resources of the May Long Challenge 2021, a rated contest for Divisions Two and Three. See how 235 players tied for first place in Division Two and 85 players shared the top spot in Division Three.
CodeChef offers practice contests, videos and problems for beginners and advanced coders to prepare for SnackDown, a global coding competition. Learn new skills, concepts and algorithms with CodeChef's SnackDown Preparation Series.
Oct 8, 2020 · Learn about ICPC, the oldest and most prestigious programming contest in the world, and how to prepare for it. Find out the best programming language, concepts, problems, and tips to participate in ICPC with CodeChef.
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