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Modular multiplicative inverse function in Python
Does some standard Python module contain a function to compute modular multiplicative inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this.
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How to get process ID of background process?
I start a background process from my shell script, and I would like to kill this process when my script finishes.
7 Answers...
How to git-cherry-pick only changes to certain files?
... into a Git branch the changes made only to some of the files changed in a particular commit which includes changes to multiple files, how can this be achieved?
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Is an array name a pointer?
Is an array's name a pointer in C?
If not, what is the difference between an array's name and a pointer variable?
10 Answer...
Rails.env vs RAILS_ENV
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MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
...性能，网络影响有点大，数据丢失的应该很少
2 主库dump数据，锁库，然后同步，不好。 影响业务使用
3 percona-toolkit 中的工具来校验和同步，从介绍上来看是符合现在的情况的，使用上还需要学习和认识才行。
下面是几个参...
Find the nth occurrence of substring in a string
This seems like it should be pretty trivial, but I am new at Python and want to do it the most Pythonic way.
21 Answers
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地图组件（高德地图） · App Inventor 2 中文网
...每个块对应一个特定的URL。
默认高德地图简图模式：https://wprd01.is.autonavi.com/appmaptile?x={x}&y={y}&z={z}&style=7
可调整地图样式，变量说明如下：
域名前缀(wprd,webst)：效果一样，目前还没有找出规律。01 ~ 04 随意都可以，负载均衡...
How to remove only underline from a:before?
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What is the equivalent of “none” in django templates?
...is displayed.
{{ profile.user.first_name|default:"--" }}
Documentation:
https://docs.djangoproject.com/en/dev/ref/templates/builtins/#default
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