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C++ Exercises: Convert a binary number to decimal number

C++ For Loop: Exercise-73 with Solution

Write a program in C++ to convert a binary number to decimal number.

Pictorial Presentation:

C++ Exercises: Convert a binary number to decimal number

Sample Solution:-

C++ Code :

#include <iostream>
#include <math.h>
using namespace std;
 
int main()
{
  long binaryNumber, decimalNumber = 0, j = 1, remainder;
	cout << "\n\n Convert a  binary number to decimal number:\n";
	cout << "-----------------------------------------------\n";
	cout << " Input a binary number: ";
	cin>> binaryNumber;
  while (binaryNumber != 0) 
  {
   remainder = binaryNumber % 10;
   decimalNumber = decimalNumber + remainder * j;
   j = j * 2;
   binaryNumber = binaryNumber / 10;
  }
  cout<<" The decimal number: " << decimalNumber<<"\n";
} 

Sample Output:

Convert a  binary number to decimal number:                           
-----------------------------------------------                        
 Input a binary number: 1011                                           
 The decimal number: 11

Flowchart:

Flowchart: Convert a binary number to decimal number

C++ Code Editor:

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Previous: Write a program in C++ to convert a decimal number to octal number.
Next: Write a program in C++ to convert a binary number to hexadecimal number.

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C++ Programming: Tips of the Day

Which is faster: Stack allocation or Heap allocation

Stack allocation is much faster since all it really does is move the stack pointer. Using memory pools, you can get comparable performance out of heap allocation, but that comes with a slight added complexity and its own headaches.

Also, stack vs. heap is not only a performance consideration; it also tells you a lot about the expected lifetime of objects.

Ref : https://bit.ly/3COrdfj