Generate non-repeating random number (C + +)

Take the bubble sort method as an example:

1#include <stdio.h>2#include <stdlib.h>3#include <time.h>4 intCreatdata (intArr[],intNintMinintmax)5 {6     intI,j,flag;7Srand (Time (NULL));//creat Data8     if(max-min+1<n)return 0;9      for(i=0; i<n;i++)Ten     { One          Do A         { -Arr[i]= (max-min+1) *rand ()/(rand_max+1)+min; -flag=0; the              for(j=0; j<i;j++) -             { -                 if(arr[i]==Arr[j]) -                 { +flag=1; -                 } +             } A         } at          while(flag); -     } -     return 1; - } - voidBubblesort (intA[],intN) - { in     inti,j,t; -      for(i=0; i<n;i++) to     { +          for(j=n-1; j>i;j--) -         { the             if(a[j-1]>A[j]) *             { $t=a[j-1];Panax Notoginsenga[j-1]=A[j]; -a[j]=T; the             } +         } A         /*printf ("%2d times:", i+1); the For (j=0;j<n;j++) + printf ("%d", a[j]); - printf ("\ n");*/ $     } $ } - intMain () - { the     inti,a[6]; -      for(i=0;i<6; i++)Wuyi     { thea[i]=0; -          Wu     } -     if(!creatdata (A,6,1, -)) About     { $printf"generate random number not successful \ n"); -         return 1; -     } -printf"Original data:"); A      for(i=0;i<6; i++) +printf"%d", A[i]); theprintf"\ n"); -Bubblesort (A,6); $printf"after sorting:"); the      for(i=0;i<6; i++) theprintf"%d", A[i]); theprintf"\ n"); the     return 0;  -}

Generate non-repeating random number (C + +)