/*This program converts number to its' string form. You need to enter integer number bigger than negative 1 septillion and less than 1 septillion. (I'll try to make this range bigger) For example: Input: 123 Output: one hundred twenty three */ #include #include using namespace std; #define SPACE ' ' map digits={{0,"zero"},{1,"one"},{2,"two"},{3,"three"},{4,"four"},{5,"five"},{6,"six"},{7,"seven"},{8,"eight"},{9,"nine"}}; map teen_numbers={{10,"ten"},{11,"eleven"},{12,"twelve"},{13,"thirteen"},{14,"fourteen"},{15,"fifteen"},{16,"sixteen"},{17,"seventeen"},{18,"eighteen"},{19,"nineteen"}}; map decades={{20,"twenty"},{30,"thirty"},{40,"fourty"},{50,"fifty"},{60,"sixty"},{70,"seventy"},{80,"eighty"},{90,"ninety"}}; string thousand_power[] ={"","thousand","million","billion","trillion","quadrillion","quintillion","sextillion"}; int ctoi(char c) { return stoi(&c); } string NumToStrConverter(string s) { string out = ""; if(s[0]=='-') { out+="negative "; s.erase(0,1); } size_t uiSize = s.size(); bool is_teen_num=false; for (size_t i=0; i> s; if (!CheckEntered(s)) { cout << "Wrong input"; } else { cout << s << ": " << NumToStrConverter(s); } return 0; }

Number to string convertator challenge