"Interview frequently" C language: Input: "Student A Am I", output "I am a student, cannot use library function

Tag: The contents of a character array are: "Student a Am I"     please change the contents of the array to "I am a student".    

#include <stdio.h>//#include  <assert.h>void my_reverse (char *left ,char *  right) { //assert (left);  //assert (right);    is null for handling pointer functions, guaranteeing a valid  while (left  < right)  {  char tmp =  *left;  //reverse   with intermediate variables  *left =  *right;  *right = tmp;  left ++;   Right --; }}int my_strlen (CHAR&NBSP;*STR)//Get the array length definition to find the function of string length { int count =  0; while (*str++)  {  count ++;  }  return count; // Returns the specified value of Count point int}void reverse (char arr[])   //char *arr{  char *pstart  = arr; char *pend = arr + my_strlen (arr)  -1; //Note array starting from 0  char *pcur = null; if ((arr == null)  | |   (arr[0]== '))  //empty array or array end, do not process  { &nbsP;return ;    } my_reverse (pstart,pend);   //inverse entire array  while (*arr)// Not NULL, for the case of '  {  pcur =arr;  //' array start address   while (*arr != '   && *arr != '   ')   //inside the word   {   arr++;  }   pend =arr - 1;  //back a   my_reverse (pcur, pend);     //the word   if (*arr ==  '   ') that encounters a space is followed by a word    {  //    arr++;   } }}int main () { char arr[] =  "Student  a am i ";    //idea: The string is reversed first, and then encountered in the space to reverse the word  reverse (arr);  printf ("%s\n ", ARR);  return 0; }

650) this.width=650; "title=" capture. PNG "src=" http://s3.51cto.com/wyfs02/M00/75/45/wKiom1Y0Pf-Cth4SAADIeoaWUZc883.jpg "alt=" Wkiom1y0pf-cth4saadieoawuzc883.jpg "/>

"Interview frequently" C language: Input: "Student A Am I", output "I am a student, cannot use library function