2 posts tagged with "随笔，时间复杂度"

var arr = [["1","2"],["3","4","5"]]; 预期结果 [["1","3"],["1","4"],["1","5"],["2","3"],["2","4"],["2","5"]]

var arr = [["1","2"],["3","4","5"]]; 预期结果 [["1","3"],["1","4"],["1","5"],["2","3"],["2","4"],["2","5"]]