14 lines · c
1#define RANGE(a,b,c) ((a) <= (b) && (b) <= (c))2 3int sub(int c) {4 if (RANGE('0', c, '9')) return 1;5 return (('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z'));6}7 8extern void __llvm_profile_write_file(void);9 10int main(int c, char **v)11{12 return (c > 1 ? sub(c) : 0);13}14