gcc-10 -Wall -lm -static -DEVAL -o quality -O2 quality.c grader.c
g++-10 -Wall -lm -static -DEVAL -o quality -O2 quality.cpp grader.cpp
g++-10 -Wall -lm -static -DEVAL -o quality -O2 quality.cpp grader.cpp -std=c++14
g++-10 -Wall -lm -static -DEVAL -o quality -O2 quality.cpp grader.cpp -std=c++17