int bintodec(string); // converts a binary number (represented as a STRING) to decimal int hextodec(string); // converts a hexadecimal number (represented as a STRING) to decimal string dectobin(int); // converts a decimal number to binary (represted as a STRING) string dectohex(int); // converts a decimal number to hexadecimal (represted as a STRING)

//the addbin and addhex functions work on UNsigned numbers

string addbin(string, string); // adds two binary numbers together (represented as STRINGS) string addhex(string, string); // adds two hexadecimal numbers together (represented as STRINGS)

int main() { cout<<"SIGNED binary 10011 = SIGNED decimal "<

int bintodec(string bin) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }

int hextodec(string hex) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }

string dectobin (int dec) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }

string dectohex(int dec) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }

string addbin(string bin1, string bin2) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }

string addhex(string hex1, string hex2) { /* ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### ##### IMPLEMENT THIS ##### */ }