##Please solve them using C program!##

1. Write a C function as given below that adds the characters of string, s with string d. Do not use library functions. char* strjoin (char d[l, char s[l) { /* write your codes here */ return d; } 2. Write another C function as given below that reverses the characters in string, s. char* revstr (char* s) /* same as char s[l */ { /* write your codes here */ return s; }