c program to reverse a string using pointers, Strings, Adv C

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Question:C program to reverse a string using pointers

Answer #include<stdio.h>
int main(){
    char str[50];
    char rev[50];
    char *sptr = str;
    char *rptr = rev;
    int i=-1;

    printf("Enter any string : ");
    scanf("%s",str);
   
    while(*sptr){
     sptr++;
     i++;
    }

    while(i>=0){
     sptr--;
     *rptr = *sptr;
     rptr++;
     --i;
    }

    *rptr='\0';
  
    printf("Reverse of string is : %s",rev);
  
    return 0;
}
Sample output:
Enter any string : Pointer
Reverse of string is : retnioP

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C program to reverse a string using pointers