A Program to Convert Decimal to Binary
In this example, we are giving a program to convert a number from decimal to binary.
Program to convert decimal to binary:
#include <iostream>
#include <cmath>
using namespace std;
long long convert(int n);
int main() {
int n;
cout << "Enter a decimal number: ";
cin >> n;
cout << n << " in decimal = " << convert(n) << " in binary " << endl;
return 0;
}
long long convert(int n) {
long long bin = 0;
int rem, i = 1, step = 1;
while (n != 0) {
rem = n % 2;
cout << "Step " << step++ << ":" << n << "/2, Remainder = " << rem << "Quotient = " << n/2 << endl;
n /= 2;
bin += rem * i;
i *= 10;
}
return bin;
}
Output:
Enter a decimal number: 19 Step 1: 19/2, Remainder = 1, Quotient = 9 Step 2: 9/2, Remainder = 1, Quotient = 4 Step 3: 4/2, Remainder = 0, Quotient = 2 Step 4: 2/2, Remainder = 0, Quotient = 1 Step 5: 1/2, Remainder = 1, Quotient = 0 19 in decimal = 10011 in binary