There is O(|black cells|) solution. Let's consider only 8 cells near the edge. There are three(four) cases: 1) There are black cells in both side. In this case, already result is fixed because the players can not change a parity of the number of turns while the game ends. ...
I've read many blogs here, and upsolving is always mentioned as one of the best ways to improve. I try to solve problems after contests, but I feel like I’m not making the most out of it. How do you approach upsolving? What helped you the most in getting better at problem-solvin...
Thank you for participating in our contest! We hope you enjoyed it. Please let us know what you thought of the problems by voting! 1952A - Are You a Robot, Again? Idea: flamestorm Hint Solution Feedback 1952B - Is it stated? Idea: willy108 Hint Solution Feedback 1952C - They Have...
leetcode-rust package require rustc_private feature to enable rustc relative APIe.g. use rustc_span::lev_distance::lev_distance(&a, &b) one line to solve leetcode edit-distance (Unfortunately we can't use nightly and rustc-dev in leetcode)...
给定\(a,b\),求 $\max \gcd(a+k,b+k),k\in [-\min(a,b),+\infty] \cap \mathbb Z $ 多组数据。 特殊规定:\(\gcd(0,x)=x\) \(\mathtt{restrictions:}1\leq a,b\leq 10^{18}\) \(\mathtt{Solution}\) 考虑更相减损术:\(\gcd(a,b) = \gcd(b,a-b)\quad(a \ge b)\)...
risal-shefin Add solution for problem E - Knapsack 2Mar 26, 2022 31482b5· Mar 26, 2022 History1,844 Commits atcoder atcoder Add solution for problem E - Knapsack 2 Mar 26, 2022 codeforces codeforces Add solution for problem B - GCD Compression Sep 21, 2021 README.md README.md Add...
(Due to having too many submissions in the early part of the contest, we relaxed this requirement from the earlier one of needing to place in the top 5000 of the round) The contest will be 3 hours. As usual, you may not discuss solution ideas or code until after the contest hours is...
*I am not very good at English, so I apologize for using a translator. How to become Specialist? I am a freshman in college and have just started learning how to participate in online programming competitions. I try my best to participate in all the competitions on CodeForces to improve my...
if you submit an invalid query, the interactor outputs -1 and you must exit in order to receive WA; otherwise you may receive an arbitrary verdict. No such guarantee was made for this problem, meaning that verdicts were essentially completely arbitrary (e.g., my solution got TLE and I ...
leetcode-rust package require rustc_private feature to enable rustc relative APIe.g. use rustc_span::lev_distance::lev_distance(&a, &b) one line to solve leetcode edit-distance (Unfortunately we can't use nightly and rustc-dev in leetcode)...