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iamgodot / argparse.py
Created October 8, 2021 15:43
Recall how to use argparse in 5 mins
'''
Small tutorial example for `argparse`.
For details, check out
1. https://docs.python.org/3.9/howto/argparse.html
2. https://docs.python.org/3.9/library/argparse.html
'''
from argparse import ArgumentParser
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iamgodot / arch_upgrade_log.txt
Created September 20, 2021 07:20
Arch upgrade log (5.14.5)
[2021-09-19T00:13:13+0800] [PACMAN] Running 'pacman -Syyy'
[2021-09-19T00:13:13+0800] [PACMAN] synchronizing package lists
[2021-09-19T00:13:41+0800] [PACMAN] Running 'pacman -Syyu'
[2021-09-19T00:13:41+0800] [PACMAN] synchronizing package lists
[2021-09-19T00:14:04+0800] [PACMAN] starting full system upgrade
[2021-09-19T08:17:35+0800] [PACMAN] Running 'pacman -Syyu'
[2021-09-19T08:17:35+0800] [PACMAN] synchronizing package lists
[2021-09-19T08:17:40+0800] [PACMAN] starting full system upgrade
[2021-09-19T08:21:40+0800] [ALPM] running '60-mkinitcpio-remove.hook'...
[2021-09-19T08:21:40+0800] [ALPM] transaction started
@iamgodot
iamgodot / arch_suspend_erroneous.txt
Created September 20, 2021 07:18
Arch log of erroneous suspending
-- Journal begins at Sun 2021-05-30 17:35:35 CST, ends at Mon 2021-09-20 13:26:37 CST. --
Sep 20 13:13:02 dreamland kernel: Linux version 5.14.5-arch1-1 (linux@archlinux) (gcc (GCC) 11.1.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Thu, 16 Sep 2021 11:02:40 +0000
Sep 20 13:13:02 dreamland kernel: Command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=9a8695fa-dd04-4dc2-8319-a141528d45fe rw loglevel=3 quiet
Sep 20 13:13:02 dreamland kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks
Sep 20 13:13:02 dreamland kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
Sep 20 13:13:02 dreamland kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
Sep 20 13:13:02 dreamland kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
Sep 20 13:13:02 dreamland kernel: x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask'
Sep 20 13:13:02 dreamland kernel: x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256'
@iamgodot
iamgodot / arch_suspend_normal.txt
Created September 20, 2021 07:14
Arch log of normal suspending
Sep 12 11:38:57 dreamland systemd-logind[364]: Lid closed.
Sep 12 11:38:57 dreamland systemd-logind[364]: Suspending...
Sep 12 11:38:57 dreamland NetworkManager[363]: <info> [1631417937.0644] manager: sleep: sleep requested (sleeping: no enabled: yes)
Sep 12 11:38:57 dreamland NetworkManager[363]: <info> [1631417937.0645] device (p2p-dev-wlp0s20f3): state change: disconnected -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
Sep 12 11:38:57 dreamland NetworkManager[363]: <info> [1631417937.0652] manager: NetworkManager state is now ASLEEP
Sep 12 11:38:57 dreamland NetworkManager[363]: <info> [1631417937.0654] device (wlp0s20f3): state change: activated -> deactivating (reason 'sleeping', sys-iface-state: 'managed')
Sep 12 11:38:57 dreamland dbus-daemon[362]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.3' (uid=0 pid=363 comm="/usr/bin/NetworkManager --no-daemon ")
Sep 12 11:38:57 dreamland syste
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iamgodot / two_sum.py
Last active September 20, 2021 04:36
Test upload via cli
# 给定数字数组和一个目标整数，在数组中找到和为目标值的两个数字，并返回下标。
# 重点是答案里不能是同一个元素，所以要考虑目标值是某个数字两倍的情况。
# 1. Brute Force, O(n^2) & O(1)
def two_sum(nums: list, target: int) -> list:
'''记得循环下标而不是数组本身。'''
length = len(nums)
for i in range(length):