Competitive Programming Guide Sorting And color trends 2026: Meanings, Combinations, and Trends Explained

Problem: https://cses.fi/problemset/task/1073 Greedy problem which can be implemented with multiset.

Problem: https://cses.fi/problemset/task/1621 I didn't discuss running time during the video, so let me do it here. Because N is up to ...

Problem: https://cses.fi/problemset/task/1629 Greedy

Problem: https://cses.fi/problemset/task/1631 Simple implementation once you have the right idea!

https://cses.fi/problemset/task/1141 Simple application of set. unordered_set would be even better (slightly).

Problem: https://cses.fi/problemset/task/1641 Solving this problem significantly faster than O(n^2) is an unsolved theoretical ...

Problem: https://cses.fi/problemset/task/1163 Simulation multiset problem. Just do what they tell you, but use multiset to run in O(n ...

Problem: https://cses.fi/problemset/task/1619

In this video, I describe the steps to start

Problem: https://cses.fi/problemset/task/1642 Very similar to the previous problem. You can solve "sum of K values" in ...

Problem: https://cses.fi/problemset/task/1620 Watch out for overflow in this problem! Binary search is a very important technique to ...

Problem: https://cses.fi/problemset/task/1164 Simulation with

Problem: https://cses.fi/problemset/task/1640 Another way to solve this problem is with hash table or set. Put all the elements into a ...