inbuilt function to convert decimal to binary in c++ code example
Example 1: convert decimal to binary in c++
// C++ program to convert a decimal
// number to binary number
#include <iostream>
using namespace std;
// function to convert decimal to binary
void decToBinary(int n)
{
// array to store binary number
int binaryNum[32];
// counter for binary array
int i = 0;
while (n > 0) {
// storing remainder in binary array
binaryNum[i] = n % 2;
n = n / 2;
i++;
}
// printing binary array in reverse order
for (int j = i - 1; j >= 0; j--)
cout << binaryNum[j];
}
// Driver program to test above function
int main()
{
int n = 17;
decToBinary(n);
return 0;
}
Example 2: how to do decimal to binary converdsion in c++
// C++ program for decimal to binary
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
using namespace std;
int main() {
vector<int>nums; // list that will hold binary values
int num = 0;
cout<<"Number: "<<endl;
cin>>num; // number input
int i=0; // iterator for vector
while(num!=0)
{
nums.push_back(num%2); // adds binary value to the back of string
i++; // i gets incremented for the next position in vector
num=num/2;
}
reverse(nums.begin(),nums.end()); // reverses order of vector
for(auto x:nums)
{
cout<<x; // outputs stuff in vector
}
return 0;
}