bits.cc

来自「资深C++讲师授课代码」· CC 代码 · 共 25 行

#include <iostream>
using namespace std;

int main()
{
	int n;
	cout << "请输入一个整数:";
	cin >> n;
	unsigned int m=0x80000000;//1000 0000 0000 0000 0000 0000 0...
	int counter = 0;
	for(int i=0; i<32; i++)
	{
		if((m&n)!=0)
		{
			++counter;
			cout << 1;
		}
		else { cout << 0; }
		m >>= 1;
		if(i%4==3) { cout << ' '; }
	}
	cout << endl << counter << " 1s" << endl;
}