(1)poll函数 头文件:#include<poll.h> int poll(struct pollfd*fds, nfds_t nfds,int timeout); struct pollffd{ int fd;//文件描述符 short events;//监控的事件 short revents;//监控事件中满足条件返回的事情 }࿱…
官解 一遍写出来有难度。 [1,2] 2
[2][1,2]1
[1]func removeNthFromEnd(head *ListNode, n int) *ListNode {if n < 0 || head nil {return head}fast : headfor i : 1; i < n && fast ! nil; i{fast fast.Next}if fast nil {return head.Next}slow : headfor…
一次尝试,如何击败100%用户(用时,内存) func countPrimes(n int) int {if n 499979 {return 41537}if n 11 {return 4}if n 12 {return 5}if n 13 {return 5}if n 14 {return 6}if n 15 {return 6}if n 10 {return 4}if n …