4Sum
摘要:
4Sum问题:Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the ... 阅读全文
posted @ 2015-04-01 21:14 zhouzhou0615 阅读(123) 评论(0) 推荐(0) 编辑