int ReverseString(char *, int, int);
int main(void){
char string[10] = "abcdefghi";
ReverseString(string, 0, strlen(string)-1);
printf("%s\n",string);
return 0;
}
int ReverseString(char *str, int front, int end){
if(front > end)
return 1;
else{
char temp;
temp = str[front];
str[front] = str[end];
str[end] = temp;
front++;
end--;
ReverseString(str, front, end);
}
}