大概就是dfs?当前区间(l,r)的答案可以由(l,m)和(m+1,r)区间推出,如果某个区间已经完全被某种颜色覆盖,那么就返回该颜色.否则按照递归层数判定,奇数层Alice占优势,只需左右区间中一者为必胜即可,而Bob需要左右区间均为其必胜色才可以.无解判一下即可.感觉还是很巧妙. There is a strip 1 × n with two sides. Each square of the strip (their total amount is 2 n, n squares on ea…
There is a strip 1 × n with two sides. Each square of the strip (their total amount is 2n, n squares on each side) is painted in one of two colors (let’s call them A and B). Alice and Bob play a game. Alice makes the first turn. On each turn, a playe…
Game with a Strip Time limit: 2.0 secondMemory limit: 64 MB There is a strip 1 × n with two sides. Each square of the strip (their total amount is 2n, nsquares on each side) is painted in one of two colors (let’s call them A and B). Alice and Bob pla…
strip的用法是去除字符串中前后两端的xx字符,xx是一个字符数组,并不是去掉“”中的字符串, 数组中包含的字符都要在字符串中去除.默认去掉空格,lstrip则是去掉左边的,rstrip是右边的 见代码: In [1]: s = ' abc ' In [2]: s.strip() Out[2]: 'abc' In [3]: s = 'abc def abc' In [4]: s.strip() Out[4]: 'abc def abc' In [5]: s.strip('abc') Out[5…
一.简介 strip经常用来去除目标文件中的一些符号表.调试符号表信息,以减小程序的大小. 二.语法 https://sourceware.org/binutils/docs/binutils/strip.html 三.实例 1)Remove all symbol and relocation information strip --strip-all [需要处理的文件] 2)去掉调试信息 strip --strip-debug [需要处理的文件] 3)Remove a particular s…
题目链接: B. Strip time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alexandra has a paper strip with n numbers on it. Let's call them ai from left to right. Now Alexandra wants to split it into…
Color Stripe Time Limit:2000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 219C Description A colored stripe is represented by a horizontal row of n square cells, each cell is pained one of k colors.…
C. Stripe Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/18/C Description Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly neg…
B. Strip Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/487/problem/B Description Alexandra has a paper strip with n numbers on it. Let's call them ai from left to right. Now Alexandra wants to split it into some pieces (p…