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Socket.IO - how do I get a list of connected sockets/clients?
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In Socket.IO 0.7 you have a clients method on the namespaces, this returns a array of all conn...
How to find all combinations of coins when given some dollar value
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round() for float in C++
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It's available since C++11 in cmath (according to http://www.open-std.org/jtc1/sc22/wg21/docs/pa...
Algorithm to return all combinations of k elements from n
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71 Answers
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How to generate a random integer number from within a range
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Modular multiplicative inverse function in Python
...e 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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jQuery select by attribute using AND and OR operators
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AND operation
a=$('[myc="blue"][myid="1"][myid="3"]');
OR operation, use commas
a=$('[myc=...
How to get whole and decimal part of a number?
Given, say, 1.25 - how do I get "1" and ."25" parts of this number?
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Algorithm to calculate the number of divisors of a given number
...ivisor is repeated)
then the total count for all of the divisors is:
(x + 1) * (y + 1) * (z + 1).
Edit: BTW, to find a,b,c,etc you'll want to do what amounts to a greedy algo if I'm understanding this correctly. Start with your largest prime divisor and multiply it by itself until a further multip...