Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place. Example 1: Input: [ [1,1,1], [1,0,1], [1,1,1] ] Output: [ [1,0,1], [0,0,0], [1,0,1] ] Example 2: Input: [ [0,1,2,0], [3,4,5,2], [1,3,1,5]
1.Background Winsock kernel buffer To optimize performance at the application layer, Winsock copies data buffers from application send calls to a Winsock kernel buffer. Then, the stack uses its own heuristics (such as Nagle algorithm) to determine wh
https://blog.csdn.net/happyrabbit456/article/details/54945667 Redis需要设置最大占用内存吗?如果Redis内存使用超出了设置的最大值会怎样? 设置Redis最大占用内存 Redis设置最大占用内存,打开redis配置文件,找到如下段落,设置maxmemory参数,maxmemory是bytes字节类型,注意转换.修改如下所示: Vim 1 2 3 4 5 6 # In short... if you h
之前发现一个php配置之后关于返回500和502的问题,今天看到一个兄弟写的非常不错,记录一下. php日志中有一条超时的日志,但是我request_terminate_timeout中设置的是0,理论上应该没有超时时间才对. PHP Fatal error: Maximum execution time of 30 seconds exceeded in ... OK,先列出现在的配置: php-fpm: request_terminate_timeout = 0 php.i