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hash function for string
... *input++;
result = rol(result, 5);
}
}
Edit: Also note that 10000 slots is rarely a good choice for a hash table size. You usually want one of two things: you either want a prime number as the size (required to ensure correctness with some types of hash resolution) or else a power of ...
Using Linq to get the last N elements of a collection?
... than once.
Usage:
IEnumerable<int> sequence = Enumerable.Range(1, 10000);
IEnumerable<int> last10 = sequence.TakeLast(10);
...
Extension method:
public static class Extensions
{
public static IEnumerable<T> TakeLast<T>(this IEnumerable<T> collection,
i...
Check if Internet Connection Exists with Javascript? [duplicate]
... window.location.hostname + "/?rand=" + Math.floor((1 + Math.random()) * 0x10000), false );
// Issue request and handle response
try {
xhr.send();
return ( xhr.status >= 200 && (xhr.status < 300 || xhr.status === 304) );
} catch (error) {
return false;
}
}
You c...
Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2
...
Did you try something like :
options(scipen=10000)
before plotting ?
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Append TimeStamp to a File Name
...ts the year in four digits followed by a dash
This has a "year 10000" problem
MM- Prints the month in two digits
dd_ Prints the day in two digits followed by an underscore
hh- Prints the hour in two digits
mm- Prints the minute, also in two...
How to easily map c++ enums to strings
... */
state2 = 2, /* state 2 */
state3 = 4, /* state 3 */
state16 = 0x10000, /* state 16 */
};
Generated:
template <State n> struct enum2str { static const char * const value; };
template <State n> const char * const enum2str<n>::value = "error";
template <> struct e...
Setting a timeout for socket operations
...cket = new Socket();
// Connect with 10 s timeout
socket.connect(sockaddr, 10000);
Hope it helps!
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Any reason not to use '+' to concatenate two strings?
...D','E','F']
>>> myl2=[chr(random.randint(65,90)) for i in range(0,10000)]
Lets create two functions, UseJoin and UsePlus to use the respective join and + functionality.
>>> def UsePlus():
return [myl[i] + myl[i + 1] for i in range(0,len(myl), 2)]
>>> def UseJoin():...
Select n random rows from SQL Server table
...
SET STATISTICS TIME ON
SET STATISTICS IO ON
/* newid()
rows returned: 10000
logical reads: 3359
CPU time: 3312 ms
elapsed time = 3359 ms
*/
SELECT TOP 1 PERCENT Number
FROM Numbers
ORDER BY newid()
/* TABLESAMPLE
rows returned: 9269 (varies)
logical reads: 32
CPU time: 0 ms
...
Should I use Java's String.format() if performance is important?
...v_time = System.currentTimeMillis();
long time;
for( i = 0; i< 100000; i++){
String s = "Blah" + i + "Blah";
}
time = System.currentTimeMillis() - prev_time;
System.out.println("Time after for loop " + time);
prev_time = System.currentTimeMillis();
for( i = ...