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How to trace the path in a Breadth-First Search?
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# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, start, end):
# maintain a queue of paths
queue = []
# push the first path i...
How do I return multiple values from a function? [closed]
...t; p.x, p.y
1 2
>>> p[0], p[1]
1 2
In recent versions of Python 3 (3.6+, I think), the new typing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotations.
Exa...
How do I call setattr() on the current module?
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223
import sys
thismodule = sys.modules[__name__]
setattr(thismodule, name, value)
or, without u...
Ternary operator is twice as slow as an if-else block?
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376
To answer this question, we'll examine the assembly code produced by the X86 and X64 JITs for ...
Java: Class.this
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Rarblack
3,81944 gold badges1515 silver badges3030 bronze badges
answered Apr 3 '11 at 14:51
aioobeaioobe
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Accessing bash command line args $@ vs $*
...oted. Let me illustrate the differences:
$ set -- "arg 1" "arg 2" "arg 3"
$ for word in $*; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in $@; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in "$*"; do echo "$word"; done
arg 1 arg 2 arg 3
$ for word in "$@"; do echo "$word"; do...
Regex to replace everything except numbers and a decimal point
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answered Dec 31 '10 at 20:34
ChanduChandu
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What's the difference between == and .equals in Scala?
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edited Sep 18 '13 at 12:45
Erik Kaplun
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What do all of Scala's symbolic operators mean?
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530
I divide the operators, for the purpose of teaching, into four categories:
Keywords/reserved ...