A. Sea Battle time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output In order to make the "Sea Battle" game more interesting, Boris decided to add a new ship type to it. The ship consists of…
A.Regular bracket sequence A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular if it it is possible to obtain correct arithmetic expression by inserting…
B. Lost Number[CF交互题 暴力] This is an interactive problem. Remember to flush your output while communicating with the testing program. You may use fflush(stdout) in C++, system.out.flush() in Java, stdout.flush() in Python or flush(output) in Pascal to…
vim有三种模式:输入模式,命令模式,底行模式,使用esc进入命令模式,在命令模式下按英文的冒号,进入底行模式:命令行模式下按i进入输入模式.vim编辑文件是将文件内容复制到缓冲区显示在屏幕上. vim的启动 输入vim命令后,便进入全屏幕编辑环境,此时的状态为命令模式. vim 进入vim的一个临时缓冲区,光标定位在该缓冲区第1行第1列的位置上 vim file1 如果file1文件不存在,将建立此文件:如该文件存在,则将其拷贝到一个临时缓冲区.光标定位在该…
