/* ============================================= Usage Example: Enter string samples separated by space or new line, the code will process each input individually : ) [Example @ Code Playground input dialog] They work 9am to 5pm AK-47 assault rifle ... © 2018 SoloLearn Community ============================================= [ Challenge Link ] https://www.sololearn.com/Discuss/1072054/?ref=app [ Description ] [Challenge] Real challenge! Letters/Numbers to binary! Challenge: write a program that takes an input either a word or numbers If it is a word, print it, and find the list of numbers that corresponds to the word. A=1 B=2 ... z=26 so for the word Act the output would be 1320, a=1 c=3 t=20. The program should also take that number, convert it to binary and print that as well.If the input was numbers, then it just converts that number to binary. For the word: Act Output: Act 1320 10100101000 https://code.sololearn.com/ca9us93Wp3DT/?ref=app */ #include #include #include #include /* Function ordToNumber Description: Converts all alphabets A..Z or a..z to 1..26, and/or number 0..9 from the input string, then accumulate them in a stringstream, finally extracts the accumulated string back out as number. Parameters: stringstream stringstream for accumulating converted alphas, and numbers string string to convert. ull conversion output uint number of digits in the conversion output Return value: int, 1: Alphabets 2: Numeric 3: Alphanumeric */ int ordToNumber( std::stringstream& oss, std::string s, unsigned long long& outValue, unsigned int& outDigitCount) { if(s.empty()) { outValue = outDigitCount = 0; return 0; } int cc, i, flag {0}; // Clear stringstream buffer first, so we // have a clean buffer to work with. oss.str(std::string()); oss.clear(); for(char ch : s) { // * In MinGW isalpha returns: // 0: Non alphabet // 1: uppercase (A..Z) // 2: lowercase (a..z) // * In Linux isalpha returns either zero or non zero cc = std::isalpha(ch); if(cc) { // ASCII code manipulation to turn // A..Z or a..z → 1..26 if(cc > 2) cc = (std::islower(ch) ? 2 : 1); i = ((cc == 1) ? ch - 64 : ch - 96); flag |= 1; // We have alphas here } else { // Ignore all non alphabetical // characters except for 0..9 if(!std::isdigit(ch)) continue; // ASCII code manipulation to turn // '0'..'9' → 0..9 i = ch - 48; flag |= 2; // We have numbers here } oss << i; // Put to stream } if(oss.good() && oss.str().length()) { oss >> outValue; // Get from stream outDigitCount = oss.str().length(); } else { outValue = 0; outDigitCount = 1; } return flag; } /* Function toBinary Description: Accepts a number and returns a binary string representation of the number. Parameters: ull Number to work with Return value: string, binary representation of number */ std::string toBinary(unsigned long long n) { if(!n) return std::string(32, 48); // Calculate bits, size of binary string unsigned int bsLength {32}; if(n > 4294967295ULL) { unsigned long long v {4294967296}; for(; v <= n; v *= 2, ++bsLength); } std::string bs (bsLength, 48); std::string::size_type l {bs.length() - 1}; unsigned long long btc {1}; for(unsigned int bit = 0; bit < bsLength; bit++, btc *= 2) { if(btc > n) break; if(n & btc) bs[l - bit]++; } return bs; } // Main procedure int main() { std::stringstream ss; unsigned long long n {0}; // the number unsigned int dc {0}; // digit count std::string mixed, hr (35, 61); int scf {0}; // content flag // Description of std::string sct[] { "Invalid", "Alpha", "Number", "Alphanumeric" }; std::cout << "Enter number or word (use space or new line to separate multiple samples)"; while(std::cin >> mixed) { scf = ordToNumber(ss, mixed, n, dc); std::cout << "\n\n[Input: " << sct[scf] << "]\n\"" << mixed << "\"\n[Decimal: " << dc << " digit]\n" << n; mixed = toBinary(n); std::cout << "\n[Binary: " << mixed.length() << " bit]\n" << mixed << "\n\n" << hr; } return 0; }

Challenge - Alphanum to Binary