Question

How to print a number in binary representation using C++

Answer 1

#include <iostream>
#include <bitset>

using std::cout;
using std::endl;

int main()
{
	cout << "98 : " << std::bitset<std::numeric_limits<unsigned short>::digits>(98) << endl;
}

/*
run:

98 : 0000000001100010

*/

 

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Answer 2

#include <iostream>
#include <bitset>

using std::cout;
using std::endl;

int main()
{
	cout << "98 : " << std::bitset<std::numeric_limits<unsigned char>::digits>(98) << endl;
}

/*
run:

98 : 01100010

*/

 

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Answer 3

#include <iostream>
#include <bitset>

using std::cout;
using std::endl;

int main()
{
	cout << "1893 : " << std::bitset<std::numeric_limits<unsigned long>::digits>(1893) << endl;
}

/*
run:

1893 : 00000000000000000000011101100101

*/

 

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