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How to reverse a singly linked list using only two pointers?
...ct Node {
char data;
struct Node* next;
} Node;
void print_list(Node* root) {
while (root) {
printf("%c ", root->data);
root = root->next;
}
printf("\n");
}
Node* reverse(Node* root) {
Node* new_root = 0;
while (root) {
Node* next = root->next;
root->next ...
Exploitable PHP functions
...'); I think the idea was that you could move the core code outside the web root, by setting the $prefix variable in the config file. If the attacker sets that value to something like "example.com/code.phps?", PHP will include that remote file instead. Near as I can tell, a 'bot actually managed to ...
PostgreSQL query to list all table names?
...hema.tables
WHERE table_type='BASE TABLE'
AND table_schema='public';
For MySQL you would need table_schema='dbName' and for MSSQL remove that condition.
Notice that "only those tables and views are shown that the current user has access to". Also, if you have access to many databases and want to ...
What does the LayoutInflater attachToRoot parameter mean?
... documentation isn't exactly clear to me about the purpose of the attachToRoot parameter.
12 Answers
...
Flask-SQLalchemy update a row's information
...)
db.session.flush()
db.session.commit()
This will add the user into the MySQL database with data {"country":"Sri Lanka"}
Modifying data will be ignored. My code that didn't work is as follows.
user = User.query().filter(User.name=='Jon Dove')
data = user.data
data["province"] = "south"
user.dat...
How to search file text for a pattern and replace it with a given value
...you don't care about file system permissions (either you're not running as root, or you're running as root and the file is root owned):
#!/usr/bin/env ruby
require 'tempfile'
def file_edit(filename, regexp, replacement)
Tempfile.open(".#{File.basename(filename)}", File.dirname(filename)) do |tem...
房多多：懂用户比懂互联网重要 - 资讯 - 清泛网 - 专注C/C++及内核技术
...我们到底应该给用户带来什么，让我们的效率提高，或者如何让整个行业的交易成本降低，我想现在所有的认知都会成为未来生存的障碍。
要改造他们、为他们植入移动互联网的基因，这样才能提高整个内部的效率，进而打造...
Renaming columns in pandas
...rename(columns=lambda x: x.lstrip(), inplace=True)
– root-11
Oct 21 '13 at 22:05
2
Similar to @ro...
how to reference a YAML “setting” from elsewhere in the same YAML file?
...epetition bother you that much I suggest to make your application aware of root property and add it to every path that looks relative not absolute.
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move_uploaded_file gives “failed to open stream: Permission denied” error
...
This is because images and tmp_file_upload are only writable by root user. For upload to work we need to make the owner of those folders same as httpd process owner OR make them globally writable (bad practice).
Check apache process owner: $ps aux | grep httpd. The first column will be ...