#include<stdio.h>char data[5]={'a','b','c','d','e'};int vist[5]={0};char step[5]={0};char bu[5];void quan(int i){ if(i==5) {  for(int a=0;a<5;a++)   printf("%c",step[a]);  printf("\n");  return; } for(int a=0;a<5;a++) {  if…

#include<stdio.h>int a[10];void quanpailie(int i){ if(i==10)  {for(i=0;i<10;i++)  {   printf("%d",a[i]);}   printf("\n");   return; }  a[i]=0;  quanpailie(i+1);  a[i]=1;  quanpailie(i+1);}int main(){ quanpailie(0); return 0;}…

描述 Given a collection of numbers, return all possible permutations.For example,[1,2,3] have the following permutations:[1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], and [3,2,1] 代码 package com.lilei.myes.es.pack1107; public class quanpailie { public st…