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@dideler
dideler / bitwise-operators.md
Created April 12, 2012 08:25
Bitwise tricks

Inspired by this article. Neat tricks for speeding up integer computations.

Note: cin.sync_with_stdio(false); disables synchronous IO and gives you a performance boost. If used, you should only use cin for reading input (don't use both cin and scanf when sync is disabled, for example) or you will get unexpected results.

Multiply by a power of 2

x = x << 1; // x = x * 2

@mahmoud
mahmoud / flatten_dict.py
Created August 20, 2012 08:55
An ok way to flatten nested dictionaries in Python (iteratively, not recursively). Even does basic circularity checks (untested at this point).
def flatten_dict(root, prefix_keys=True):
dicts = [([], root)]
ret = {}
seen = set()
for path, d in dicts:
if id(d) in seen:
continue
seen.add(id(d))
for k, v in d.items():
new_path = path + [k]
@simonewebdesign
simonewebdesign / install_sublime_text.sh
Last active March 11, 2024 12:23
Install Sublime Text 3 on Linux via POSIX shell script - http://simonewebdesign.it/install-sublime-text-3-on-linux/
#!/bin/sh
# Sublime Text 3 Install (last update: Monday 13 March 2017)
#
# No need to download this script, just run it on your terminal:
#
# curl -L git.io/sublimetext | sh
# Detect the architecture
@xypaul
xypaul / jsbin.dibug.css
Created May 8, 2014 16:26
Fill container TinyMCE
html,body {
height: 100%;
background: blue;
}
.fill-div {
height: 100%;
width: 100%
}
@kwatch
kwatch / gist:02b1a5a8899b67df2623
Last active August 1, 2023 11:23
Example to support 'geometry' type (on PostgreSQL) in SQLAlchemy
from sqlalchemy import func
from sqlalchemy.types import UserDefinedType, Float
class EasyGeometry(UserDefinedType):
def get_col_spec(self):
return "GEOMETRY"
def bind_expression(self, bindvalue):
/**
* Retrieves all the rows in the active spreadsheet that contain data and logs the
* values for each row.
* For more information on using the Spreadsheet API, see
* https://developers.google.com/apps-script/service_spreadsheet
*/
function readRows() {
var sheet = SpreadsheetApp.getActiveSheet();
var rows = sheet.getDataRange();
var numRows = rows.getNumRows();
@gmazzap
gmazzap / gm-fsdfm.php
Last active November 20, 2015 07:03
WordPress plugins that allows to use the distraction-free mode that was active pre 4.1 WP version.
<?php namespace GM\FSDFM;
/**
* Plugin Name: Fullscreen Distraction-Free Mode (pre v4.1)
* Description: Allows to use the distraction-free mode that was active pre 4.1 WP version.
* Plugin URI: https://gist.github.com/Giuseppe-Mazzapica/c081ce03a68b00d983d5
* Author: Giuseppe Mazzapica
* Author URI: https://gm.zoomlab.it
* License: MIT
* Version: 1.0.0
*/
@krambertech
krambertech / Component.jsx
Created July 2, 2016 10:44
ReactJS: Input fire onChange when user stopped typing (or pressed Enter key)
import React, { Component } from 'react';
import TextField from 'components/base/TextField';
const WAIT_INTERVAL = 1000;
const ENTER_KEY = 13;
export default class TextSearch extends Component {
constructor(props) {
super();

Note

Apple will reject apps that are using private url schemes (Ugh, Apple....) if they are pretty much obvius. Some apps are rejected and others are not, so, be aware of this issue before implementing any of those URL's in your app as a feature.

Updates

  • [UPDATE 4] iOS 10 update: apparently settings now can be reached using App-Pref instead of prefs
  • [UPDATE 3] For now you just can use url schemes to open your apps's settings with Swift 3.0 (Xcode 8). I'll keep you informed when OS preferences can be reached
  • [UPDATE 2] The openURL() method of UIApplication is now deprecated. You should use application(_:open:options:) instead
  • [UPDATE 1] Not yet tested in iOS 10. It will fail because of policies changes in URL scheme handling.