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design a stack such that getMinimum( ) should be O(1)

...) is still just a peek operation. For example, taking the original version and pushing 1 again, we'd get: Real stack Min stack 1 --> TOP 1 5 1 1 2 4 6 2 Popping from the above pops from both stac...
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How to split a string, but also keep the delimiters?

... You can use Lookahead and Lookbehind. Like this: System.out.println(Arrays.toString("a;b;c;d".split("(?<=;)"))); System.out.println(Arrays.toString("a;b;c;d".split("(?=;)"))); System.out.println(Arrays.toString("a;b;c;d".split("((?<=;)|(?=;...
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Using the RUN instruction in a Dockerfile with 'source' does not work

... Eh? If you source a script inside a shell that only exists for the command, it's not able to have a lasting effect on any future commands run, assuming that the sum total of its action is setting environment variables. So why would you use source at all, vs just bash /usr/local/bin/virtualenvwra...
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Only read selected columns

...able() to skip columns. Here the data in the first 7 columns are "integer" and we set the remaining 6 columns to "NULL" indicating they should be skipped > read.table("data.txt", colClasses = c(rep("integer", 7), rep("NULL", 6)), + header = TRUE) Year Jan Feb Mar Apr May Jun 1 2009...
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Create new user in MySQL and give it full access to one database

I want to create a new user in MySQL and give it full access only to one database, say dbTest , that I create with a command like create database dbTest; . What would be the MySQL commands to do that? ...
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App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

计算器这个看似简单的应用,当你一旦着手去制作时,就会发现写出来的程序漏洞百出,那些在人类看来理所当然的逻辑,对于计算机来说,却是浑然不知,一定要将每个细节都照顾到,程序才能如你所愿地运行,否则就会出现...
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Ruby ampersand colon shortcut [duplicate]

... Your question is wrong, so to speak. What's happening here isn't "ampersand and colon", it's "ampersand and object". The colon in this case is for the symbol. So, there's & and there's :foo. The & calls to_proc on the object, and passes it as a block to the method. In Rails, to_proc is im...
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What does static_assert do, and what would you use it for?

...n example where static_assert(...) ('C++11') would solve the problem in hand elegantly? 8 Answers ...
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Maven Run Project

...wer version of this plugin (newer than 1.2.1?) – Alexander Mills Sep 22 '17 at 22:44 Yes, there's a newer version, so ...
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Determining if a number is either a multiple of ten or within a particular set of ranges

...m - 1) / 10) % 2 == 1 && num <= 100) But that's rather dense, and you might be better off just listing the options explicitly. Now that you've given a better idea of what you are doing, I'd write the second one as: int getRow(int num) { return (num - 1) / 10; } if (ge...