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Finding three elements in an array whose sum is closest to a given number
... a better solution because it's easier to read and therefore less prone to errors. The only problem is, we need to add a few lines of code to avoid multiple selection of one element.
Another O(n^2) solution (by using a hashset).
// K is the sum that we are looking for
for i 1..n
int s1 = K - A...
iReport not starting using JRE 8
...ash, no window.
When I launch ireport_w.exe in a cmd, I get this message:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Solution:
In file etc/irep...
Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe
I get the following error when using a primitive attribute in my grails domain object:
12 Answers
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How does a public key verify a signature?
...autl -encrypt -inkey public.pem -pubin -in message.txt -out message_enc_pub.ssl
openssl rsautl -decrypt -inkey private.pem -in message_enc_pub.ssl -out message_pub.txt
xxd message_enc_pub.ssl # Print the binary contents of the encrypted message
cat message_pub.txt # Print the decrypted...
How to Join to first row
I'll use a concrete, but hypothetical, example.
11 Answers
11
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How can I get WebStorm to recognize Jasmine methods?
...ding the global jasmin/karma-jasmine library did not get rid of the JSHint errors.
You need to access the JSHint settings via WebStorm's menu system (Lang & Frameworks>JavaScript>Code Quality Tools>JSHint) and click the checkbox to enable it know which environment it is running in.
...
Correct Bash and shell script variable capitalization
...OB_HOME JOB_LOG JOB_TEMP JOB_RUN_CONTROL
Constants: LOG_DEBUG LOG_INFO LOG_ERROR STATUS_OK STATUS_ERROR STATUS_WARNING
Use "snake case" (all lowercase and underscores) for all variables that are scoped to a single script or a block.
Examples: input_file first_value max_amount num_errors
Use mixed...
How to limit depth for recursive file list?
Is there a way to limit the depth of a recursive file listing in linux?
4 Answers
4
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How does functools partial do what it does?
..."<pyshell#80>", line 1, in <module>
pfnx(4, 5)
TypeError: fnx() got multiple values for keyword argument 'a'
another use case: writing distributed code using python's multiprocessing library. A pool of processes is created using the Pool method:
>>> import multipr...
When to use “ON UPDATE CASCADE”
...t table (and you have referential integrity), you should get a foreign key error.
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