Problem description There are n stones on the table in a row, each of them can be red, green or blue. Count the minimum number of stones to take from the table so that any two neighboring stones had different colors. Stones in a row are considered ne…

You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to remove th…

169. Majority Element Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the array is non-empty and the majority element always exist in the array. Credit…

Problem: You are playing the following Nim Game with your friend: There to stones. The one who removes the last stone will be the winner. You will take the first turn to remove the stones. Both of you are very clever and have optimal strategies for t…

292. Nim Game You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first tur…

下面是今天写的几道题: 292. Nim Game You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take t…

哪一方最终给对方留下4的倍数个石头则win,即想方设法的给对方留下4的倍数个石头. 例如: 9(B win) A:3 B:2(B取2,给对方余4,对方则lose) A:1 | 2 | 3 B:3 | 2 | 1(B win) 例如:9 (A win) A:1 (留8,4的2倍) B:1 | 2 | 3  (余下7 | 6 |5) A:3 | 2 | 1 (余下4,4的1倍) B:1 | 2 | 3 (余下3 | 2 | 1) A:3 | 2 | 1 (A win) 当先手一方掌握了可以给对方留下…

You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to remove th…

A. Stones on the Table \(dp(i)\)表示最后颜色为\(i\)的最长长度. B. Queue at the School 模拟. C. Below the Diagonal 按行内点数排序,对于每行来说,从小的列开始放点. D. BerDonalds (看题解还不会,弃坑) E. More Queries to Array... 对于\(a_i\cdot (i-l+1)^k\)可以二项式展开,则原式=\[a_i\cdot\sum_{j=0}^{k}{\binom{k}{…

lc 292 Nim Game 292 Nim Game You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will tak…