短語詞組短語Permutations Advanced 排列組合進階Permutations II 序列所有無重復排列;全排列pseudorandom permutations 偽隨機置換Permutations combination 置換組合Sorting permutations 置換排序Generating Permutations 排列生成Rotation permutations 循環(huán)移位置換identical permutations [數(shù)]恒等排列;恒等排列multiple permutations 重復排列permutation and combination n . [數(shù)]排列組合 返回 permutations