// ConsoleApplication15.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//
#include <iostream>
#include <stdio.h>
using namespace std;
void to_binary(unsigned long n);
int main(void)
{
unsigned long number;
printf("Enter an integer (q to quit):\n");
while (scanf_s("%lu", &number) == 1)
{
printf("Binary equivalent:");
to_binary(number);
putchar('\n');
printf("Enter an integer (q to quit):\n");
}printf("Done.\n");
return 0;
}
void to_binary(unsigned long n) {
int r;
r = n % 2;
if (n>=2)
{
to_binary(n / 2);
}
putchar(r == 0 ? '0' : '1');
return;
}