hacker.org

#include <iostream> using namespace std; int pro(char l) { if (l=='0') return 0; if (l=='1') return 1; if (l=='2') return 2; if (l=='3') return 3; if (l=='4') return 4; if (l=='5') return 5; if (l=='6') return 6; if (l=='7') return 7; if (l=='8') return 8; if (l=='9') return 9; if (l=='a') return 10...