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Fastest way to check if a string matches a regexp in ruby?
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104
Starting with Ruby 2.4.0, you may use RegExp#match?:
pattern.match?(string)
Regexp#match? i...
Find XOR of all numbers in a given range
...u are given a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
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Why is this program erroneously rejected by three C++ compilers?
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31 Answers
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Print all day-dates between two dates [duplicate]
...up with this:
from datetime import date, timedelta
sdate = date(2008, 8, 15) # start date
edate = date(2008, 9, 15) # end date
delta = edate - sdate # as timedelta
for i in range(delta.days + 1):
day = sdate + timedelta(days=i)
print(day)
The output:
2008-08-15
2008-08-16
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Implement Stack using Two Queues
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194
Version A (efficient push):
push:
enqueue in queue1
pop:
while size of queue1 is bigge...
How to detect a Christmas Tree? [closed]
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10 Answers
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How to detect my browser version and operating system using JavaScript?
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10 Answers
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Cartesian product of x and y array points into single array of 2D points
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13 Answers
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Regex group capture in R with multiple capture-groups
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118
str_match(), from the stringr package, will do this. It returns a character matrix with one co...