[计] expert problem slover, expert problem solver

zhuān jiā wèn tí qiú jiě qì ㄓㄨㄢ ㄐㄧㄚ ㄨㄣˋ ㄊㄧˊ ㄑㄧㄡˊ ㄐㄧㄝˇ ㄑㄧˋ