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What is dynamic programming? [closed]
...problem just became more manageable.
Dynamic programming is used a lot in string problems, such as the string edit problem. You solve a subset(s) of the problem and then use that information to solve the more difficult original problem.
With dynamic programming, you store your results in some sort...
Struct Constructor in C++?
...s.
struct blocknode
{
unsigned int bsize;
bool free;
unsigned char *bptr;
blocknode *next;
blocknode *prev;
blocknode(unsigned int sz, unsigned char *b, bool f = true,
blocknode *p = 0, blocknode *n = 0) :
bsize(sz), free(f), bptr(b), prev(p), ne...
Is C++14 adding new keywords to C++?
...ch else namespace static_assert using
char enum new static_cast virtual
char16_t explicit noexcept struct void
char32_t export nullptr switch ...
Testing modules in rspec
...dummy_class = DummyClass.new
@dummy_class.extend(Say)
end
it "get hello string" do
expect(@dummy_class.hello).to eq "hello"
end
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A variable modified inside a while loop is not remembered
...will not be available once the subshell exits.
Instead you can use a here string to re-write the while loop to be in the main shell process; only echo -e $lines will run in a subshell:
while read line
do
if [[ "$line" == "second line" ]]
then
foo=2
echo "Variable \$foo upda...
SQL Server Script to create a new user
I want to write a script to create a admin user ( with abcd password ) in SQL Server Express.
Also I want to assign this user admin full rights.
...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...r was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating...
How to put space character into a string name in XML?
i have defined some strings in the strings.xml file. Now I need to put some extra space between some numbers in the string. When I type extra space characters this is not showing on the application though.
...
Difference between __str__ and __repr__?
...oh I don't know, containing just 4 elements]
Not very. Specifically, the strings in a container would find it way too easy to disturb its string representation. In the face of ambiguity, remember, Python resists the temptation to guess. If you want the above behavior when you’re printing a list,...
When should we use Observer and Observable?
... }
@Override
public void update() {
System.out.println( "Binary String: "
+ Integer.toBinaryString( subject.getState() ) );
}
}
OctalObserver.java
public class OctalObserver extends Observer{
public OctalObserver(Subject subject){
this.subject = subject;
this.sub...