Programming in C not C++

/* What does this program do? */# include void mystery1(char *s1, const char *s2);//prototype int main(void) {char string1[80];//create char array char string2[80];//create char array printf("Enter two strings: "); scanf("%79s %79s", string1, string2); mystery1(string1, string2); printf("%s ", string1); return 0;//indicate successful termination.}//end main//What does this function do? void mystery1(char *s1, const char *s2) {while (*s1 != T\theta') s1++ \ for (; *s1 = *s2; s1++, s2++) {;//empty statement.}//end for}//end function mystery 1. /* What does this program do? */# include void mystery1(char *s1, const char *s2);//prototype int main(void) {char string1[80];//create char array char string2[80];//create char array printf("Enter two strings: "); scanf("%79s %79s", string1, string2); mystery1(string1, string2); printf("%s ", string1); return 0;//indicate successful termination.}//end main//What does this function do? void mystery1(char *s1, const char *s2) {while (*s1 != T\theta') s1++ \ for (; *s1 = *s2; s1++, s2++) {;//empty statement.}//end for}//end function mystery 1