how do i write a main.c program for this? i need to declare the function in a .h file i am guessing and use it as a header in the main.c. but i am confused how to write a main.c and then contain.c without the main fucntion.

contains.c #include #include 5 void main(int argc, char *argv[] ); char *stri, *str2; if( argc != 3 ) { printf("The argument supplied is/are invalid "); stri = argv[1]; str2 = argv[2]; if(strstr(stri, str2)) 15 printf("true "); } else { printf("false ")