I have made a Repositiory in GitHub to configure VS Code specially for Competitive programming.
In this case , you don't need to write input in the command line or write fopen / close stuffs , programme will take input from a file (input.txt) automatically and give the output in another file (output.txt).You can also find the programme runtime status which will help you to calculate execution time as well as memory usage in linux.
if i want to set g++ -std=c++17 -Wshadow -Wall -o "atcoder" "atcoder.cpp" -g -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG such one as my command what should I do?