stress Linux:
if [ "$3" == "" ] || [ "$4" != "" ] ; then
        echo "Usage: <okSol> <mySol> <gen>"
        exit 1
fi
if [ -e $1 ] && [ -e $2 ] && [ -e $3 ] ; then
        for ((i = 1; i < 1000000000; i++))
        do
                echo -n -e "\rtest $i \x1b[32mOK\x1b[0m"
                ./$3 $i >testIn
                ./$2 <testIn >myAns
                ./$1 <testIn >okAns
                diff myAns okAns >/dev/null || break
        done
        echo -n -e "\rtest $i \x1b[31mWA\x1b[0m"
        echo ""
        cat testIn
        echo ""
        echo "my answer:"
        cat myAns
        echo ""
        echo "right answer:"
        cat okAns
        echo ""
else
        echo "some files don't exist"
fi
 
stress Windows:
@echo off
for /L %%i in (1, 1, 100000000000000) do (
        %3.exe %%i >input.txt
        %2.exe <input.txt >outputOk.txt
        %1.exe <input.txt >output.txt
        FC outputOk.txt output.txt >null
        echo %%i
        if errorlevel 1 (
                echo wa
                exit
        ) else (
                echo ok
        )
)
 
compile Linux:
name=${1:0:-2}
run=$2
if [ "$2" == "" ] ; then
        if [ "$name.c" == "$1" ] ; then
                run=$name
        else
                run=${1:0:-4}
        fi
fi
g++ $1 -o $run -std=c++17 -Wall -pedantic -Wpedantic -Wextra -fsanitize=address,undefined