POINTERS-48

• Problem Description

  
  Write a program to reverse a string using pointer
  
  Input and Output Format:
  
  Refer sample input and output for formatting specification.
  
  All float values are displayed correct to 2 decimal places.
  
  All text in bold corresponds to input and the rest corresponds to output.

• CODING ARENA

• #include <stdio.h>

  #include<string.h>

  int main()

  {

   char str[50];

    char rev[50];

    char *sptr=str;

    char *rptr=rev;

    int i=-1;

    scanf("%[^\n]s",str);

    while(*sptr)

    {

      sptr++;

      i++;

    }

    while(i>=0)

    {

      sptr--;

      *rptr=*sptr;

      rptr++;

      --i;

    }

    *rptr='\0';

    rptr=rev;

    while(*rptr)

    {

    *sptr=*rptr;

    sptr++;

    rptr++;

    }

    printf("%s",str);

    return 0;

  }

    

    /* char s1[20];

    char *s=s1;

    int len,i;

    scanf("%c",s1);

      len=strlen(s);

    for(i=len;i>0;i--)

      printf("%c",*(s+i));

    return 0;

  }

    

      

      

    

    

      

• Test Case 1

  
  Input (stdin)

  SRM university
  
  

  Expected Output

  ytisrevinu MRS

• Test Case 2

  
  Input (stdin)

  madam
  
  

  Expected Output

  madam