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What is 'Pattern Matching' in functional languages?
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143
Understanding pattern matching requires explaining three parts:
Algebraic data types.
What p...
How can I print literal curly-brace characters in python string and also use .format on it?
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16 Answers
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Selecting with complex criteria from pandas.DataFrame
...; from random import randint
>>> df = pd.DataFrame({'A': [randint(1, 9) for x in range(10)],
'B': [randint(1, 9)*10 for x in range(10)],
'C': [randint(1, 9)*100 for x in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 90...
What's the point of g++ -Wreorder?
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answered Dec 1 '09 at 18:40
int3int3
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Run command on the Ansible host
...If you want to run an entire play on the Ansible host, then specify hosts: 127.0.0.1 and connection:local in the play, for example:
- name: a play that runs entirely on the ansible host
hosts: 127.0.0.1
connection: local
tasks:
- name: check out a git repository
git: repo=git://foosball...
Determining complexity for recursive functions (Big O notation)
...he time complexity, in Big O notation, for each function:
int recursiveFun1(int n)
{
if (n <= 0)
return 1;
else
return 1 + recursiveFun1(n-1);
}
This function is being called recursively n times before reaching the base case so its O(n), often called linear.
int recursi...
How to reuse an ostringstream?
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157
I've used a sequence of clear and str in the past:
// clear, because eof or other bits may be...
The most efficient way to implement an integer based power function pow(int, int)
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17 Answers
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Font Awesome not working, icons showing as squares
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