Competitive programming practice

• codeforces/ - Codeforces contests and miscellaneous problems
• leetcode/ - miscellaneous LeetCode

.vscode configs

• tasks.json - two build tasks for the active file:
  • build (Cmd+Shift+B): optimized (-O2)
  • build (debug): debug symbols + STL bounds checking (-O0 -g -D_GLIBCXX_DEBUG)
  • Output goes to build/ in the same directory as the source file
• settings.json - autocomplete off; Tab expands snippets
• c_cpp_properties.json - IntelliSense set to C++20
• cpp.json - workspace snippets; !cp + Tab inserts the C++ template