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@Schachte
Schachte / LongestSubstringKDistinct.java
Last active February 7, 2025 11:05
Sliding Window Maximum Sum Subarray
import java.util.*;
class LongestSubstringKDistinct {
public static int findLength(String str, int k) {
int windowStart = 0, maxLength = 0;
Map<Character, Integer> charFrequencyMap = new HashMap<>();
for (int windowEnd = 0; windowEnd < str.length(); windowEnd++) {
char rightChar = str.charAt(windowEnd);
charFrequencyMap.put(rightChar, charFrequencyMap.getOrDefault(rightChar, 0) + 1);
@oinopion
oinopion / read-access.sql
Created October 5, 2016 13:00
How to create read only user in PostgreSQL
-- Create a group
CREATE ROLE readaccess;
-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO readaccess;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;
-- Grant access to future tables
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;
@squarism
squarism / iterm2.md
Last active October 23, 2025 12:32
An iTerm2 Cheatsheet

In the below keyboard shortcuts, I use the capital letters for reading clarity but this does not imply shift, if shift is needed, I will say shift. So + D does not mean hold shift. + Shift + D does of course.

Tabs and Windows

Function Shortcut
New Tab + T
Close Tab or Window + W (same as many mac apps)
Go to Tab + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction + Option + Arrow Key
@kevin-smets
kevin-smets / iterm2-solarized.md
Last active October 25, 2025 09:29
iTerm2 + Oh My Zsh + Solarized color scheme + Source Code Pro Powerline + Font Awesome + [Powerlevel10k] - (macOS)

Default

Default

Powerlevel10k

Powerlevel10k

@kgriffs
kgriffs / vlc
Last active May 9, 2025 02:41
Run VLC from the command line on Mac OS X and stream internet radio (such as Radio Paradise).
#!/usr/bin/env bash
/Applications/VLC.app/Contents/MacOS/VLC -I rc "$@"