zhè / ge / suàn / fǎ / méi / yǒu / shǐ / yòng / bào / lì / fǎ / ér / shì / xiān / pái / chú / bù / kě / néng / de / qíng / kuàng这个算法没有使用暴力法,而是先排除不可能的情况。This algorithm does not use brute force; instead, it first rules out impossible cases.