对拍

有些时候我们没有很强的样例，或者样例太大无法调试，亦或不确定自己代码的正确性。此时我们可以通过对拍来找到合适的 hack 数据。

提供一组 bash 对拍脚本：

for n in {1..100000}
do
    echo -e "$n \c"
    ./g > test.in
    ./b < test.in > test.ans
    if ! timeout 1s ./a < test.in > test.out; then
        echo "TLE/RE"
        echo -e "\ntest.in"
        head test.in -n 30
        echo -e "\ntest.out"
        head test.out -n 30
        echo -e "\ntest.ans"
        head test.ans -n 30
        exit 1
    fi
    if ! diff test.out test.ans -Bb; then 
        echo "WA"
        echo -e "\ntest.in"
        head test.in -n 30
        echo -e "\ntest.out"
        head test.out -n 30
        echo -e "\ntest.ans"
        head test.ans -n 30
        exit 1
    fi
    echo "AC"
done

注意：切忌从要对拍的代码 a.cpp 中截取代码放入 baoli.cpp 中！