// Decimal to Binary Conversion #include #include using namespace std; int a1, a2, remainder; int tab = 0; int maxtab = 0; int table[0]; int main() { system("clear"); cout << "Enter a decimal number: "; cin >> a1; a2 = a1; //we need our number for later on so we save it in another variable while (a1!=0) //dividing by two until we hit 0 { remainder = a1%2; //getting a remainder - decimal number(1 or 0) a1 = a1/2; //dividing our number by two maxtab++; //+1 to max elements of the table } maxtab--; //-1 to max elements of the table (when dividing finishes it adds 1 additional elemnt that we don't want and it's equal to 0) a1 = a2; //we must do calculations one more time so we're gatting back our original number table[0] = table[maxtab]; //we set the number of elements in our table to maxtab (we don't get 10's of 0's) while (a1!=0) //same calculations 2nd time but adding every 1 or 0 (remainder) to separate element in table { remainder = a1%2; //getting a remainder a1 = a1/2; //dividing by 2 table[tab] = remainder; //adding 0 or 1 to an element tab++; //tab (element count) increases by 1 so next remainder is saved in another element } tab--; //same as with maxtab-- cout << "Your binary number: "; while (tab>=0) //until we get to the 0 (1st) element of the table { cout << table[tab] << " "; //write the value of an element (0 or 1) tab--; //decreasing by 1 so we show 0's and 1's FROM THE BACK (correct way) } cout << endl; return 0; }

Decimal to Binary C++