Ask for help

其实真的不知道说什么,做SLG游戏将近一年了,进步感觉很慢。最近也不知道怎么了,感觉总是很累,工作没有什么激情,没有什么动力,和朋友聊天说是缺乏目标。自己略一思索,觉得还是有些道理的。然后大脑就转了一圈可是也没有找到一个目标,直到写到当前这个字为止,我也没有想到什么目标。可是真的不想浑浑噩噩下去,于是就在朋友的鼓动欺骗下开始写点东西记录一下,希望有人能看到,希望有人能助。
Error: node: Failed to download resource "cmake.rb" Download failed: https://raw.githubusercontent.com/Homebrew/homebrew-core/7bc1799a07a009c7a24cb160e79e3944659f8e1e/Formula/c/cmake.rb k@ks-MacBook-Air ~ % brew install cmake Warning: Treating cmake as a formula. For the cask, use homebrew/cask/cmake or specify the `--cask` flag. To silence this message, use the `--formula` flag. Warning: You are using macOS 11. We (and Apple) do not provide support for this old version. It is expected behaviour that some formulae will fail to build in this old version. It is expected behaviour that Homebrew will be buggy and slow. Do not create any issues about this on Homebrew's GitHub repositories. Do not create any issues even if you think this message is unrelated. Any opened issues will be immediately closed without response. Do not ask for help from Homebrew or its maintainers on social media. You may ask for help in Homebrew's discussions but are unlikely to receive a response. Try to figure out the problem yourself and submit a fix as a pull request. We will review it but may or may not accept it. ==> Fetching cmake ==> Downloading https://raw.githubusercontent.com/Homebrew/homebrew-core/7bc1799 curl: (7) Failed to connect to raw.githubusercontent.com port 443 after 4 ms: Couldn't connect to server Error: cmake: Failed to download resource "cmake.rb" Download failed: https://raw.githubusercontent.com/Homebrew/homebrew-core/7bc1799a07a009c7a24cb160e79e3944659f8e1e/Formula/c/cmake.rb k@ks-MacBook-Air ~ %
最新发布
03-13
The Sleeping Teaching Assistant A university computer science department has a teaching assistant (TA) who helps undergraduate students with their programming assignments during regular office hours. The TA’s office is rather small and has room for only one desk with a chair and computer. There are three chairs in the hallway outside the office where students can sit and wait if the TA is currently helping another student. When there are no students who need help during office hours, the TA sits at the desk and takes a nap. If a student arrives during office hours and finds the TA sleeping, the student must awaken the TA to ask for help. If a student arrives and finds the TA currently helping another student, the student sits on one of the chairs in the hallway and waits. If no chairs are available, the student will come back at a later time. Using POSIX threads, mutex locks, and/or semaphores, implement a solution that coordinates the activities of the TA and the students. Details for this assignment are provided below. Using Pthreads, begin by creating N students. Each will run as a separate thread. The TA will run as a separate thread as well. Student threads will alternate between programming for a period of time and seeking help from the TA. If the TA is available, they will obtain help. Otherwise, they will either sit in a chair in the hallway or, if no chairs are available, will resume programming and will seek help at a later time. If a student arrives and notices that the TA is sleeping, the student must notify the TA using a semaphore. When the TA finishes helping a student, the TA must check to see if there are students waiting for help in the hallway. If so, the TA must help each of these students in turn. If no students are present, the TA may return to napping. Perhaps the best option for simulating students programming—as well as the TA providing help to a student—is to have the appropriate threads sleep for a random period of time using the sleep() API:
06-04
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