Question (Grader is different from the original contest) Two steps Compilation commands

/usr/bin/gcc -DEVAL -std=gnu11 -O2 -pipe -static -s -o encoder encoder.c -lm

/usr/bin/g++ -DEVAL -std=gnu++20 -O2 -pipe -static -s -o encoder encoder.cpp

/usr/bin/g++ -DEVAL -std=gnu++17 -O2 -pipe -static -s -o encoder encoder.cpp

/usr/bin/gcc -DEVAL -std=gnu11 -O2 -pipe -static -s -o decoder decoder.c -lm

/usr/bin/g++ -DEVAL -std=gnu++20 -O2 -pipe -static -s -o decoder decoder.cpp

/usr/bin/g++ -DEVAL -std=gnu++17 -O2 -pipe -static -s -o decoder decoder.cpp