I am looking for a O(nmlogk)O(nmlogk) solution. Are there any smart data structures? Note that when A=[1,2,3]A=[1,2,3], all intervals are legal. For example, [1,2][1,2] is legal, as both 11 and 22 appear once. We do not care about 33 because 33 does not appear. ...
This problem was asked in recent CodeNation Online Test — Please give your solution idea to it Given A,B,C — Count the number of valid arrays of size "A"; such that each number of the array is in the range [1,C]; and no subarray of length > B exists in the valid array such...
Can anyone propose a solution? We have a N <= 100,000 node rooted tree. All nodes have integer weights (**and each weight is between 0 and 1000**). Let the height of the tree be the longest path to a leaf from the root (and the root is just defined to be node 0). You can...
..a1,a2,a3,...aK,a1,a2... No blocks can be colored black twice. Prerequisites Hints Can you continue the problem from here? Solution Code Feelings Good problem anyway, uses very simple concept but very cool implementation. XD Hope you guys learnt something from this blog.binary...
, of solution with Fenwick tree — . An Editorial to Problem <> Let’s consider two different ways to solve this problem. Note that firstly (before finding correct magic square) we can easily determine the value ofs. This value equal to the sum of all given numbers divided byn. So next...
Can anyone propose a solution? We have a N <= 100,000 node rooted tree. All nodes have integer weights (**and each weight is between 0 and 1000**). Let the height of the tree be the longest path to a leaf from the root (and the root is just defined to be node 0). The "lo...
Algorithm to solve this problem — If all weights were distinct solution is pretty simple — find 'r' the last and only occurrence of smallest number in the weight array — now travel efficiently through the second smallest number and push it to smallest position > r -> now do the same ...
Is my solution not correct when n is even or people at codeforces are unable to digest the fact that newbie can answer this? →Reply Dhoni_fan 4 years ago,#^| 0 Guys at least give me a reason for downvote. Its hurting me since what i have written is true. ...
This solution might not be obvious either but it does start with a decent intuition, one that 'B's should be evenly spread out, and if they aren't then there must be a counter-example. I must admit i wasn't expecting this to work but receiving 100 points on the judge must mean it...
UPDATE:So guys, this contest (edu 85) I tried to conquer this and solve B first, but it took too long and I didn't have enough time to work out the solution for F, the next easiest. How do I get better? Sincerely, praise kaunta...