#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(){
    char a[] = "adarsh";
    int len = sizeof(a)/sizeof(a[0]) - 1; // subtract 1 to exclude null terminator
    
    printf("%d\n", len);//scanf only no getline
    /*IMP we need to exclode '\0' for reversing so only 6 char "adarsh"*/
    
    for(int i=0; i<len/2; i++){ // corrected loop condition
        char temp = a[i];
        a[i] = a[len-1-i];
        a[len-1-i] = temp;
    }
    
    printf("%s\n", a);
    
    return 0;
}

#if 0
int main(){
    char *str = NULL;
    size_t len = 0;
    
    if (getline(&str, &len, stdin) == -1) {
        printf("no input");
        return 1;
    }
    
    // Remove newline character from input
    str[strcspn(str, "\n")] = '\0';
    
    // Reverse the string
    int str_len = strlen(str);
    for(int i=0;i<str_len/2;i++){
        char tmp = str[i];
        str[i] = str[str_len-i-1];
        str[str_len-i-1] = tmp;
    }
    
    printf("%s", str);
    
    // Free dynamically allocated memory
    free(str);
    str = NULL;// pointer to NULL after freeing it, we ensure that any further 
    //attempts to use the pointer will cause a segmentation fault, which is easier
    //to debug and less likely to cause harm.
}
#endif