C语言的问题 ，大神来帮帮我吧~~~~~~~~~~~~题目如图！

//刚写的code，测试通过，如果有疑问，欢迎交流#includechar digit_lib[10][5] = {"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};void print_pos_digit(int tar, int