gkortifitiy

C++ Algorithm Next Permutation . The complexity of the code is o(n*n!) which also includes printing all the permutations. If that was not possible (because it is already at the largest possible permutation), it rearranges the elements according to the first permutation (sorted in ascending order) and returns false. C++ next_permutation 全排列 函数的简单使用 灰信网（软件开发博客聚合） from www.freesion.com If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). It is an stl algorithm in <<strong>algorithm</strong>> header file. The next permutation of an array of integers is the next lexicographically greater permutation of its integer.