//2진수형식표현
#include
void main()
{
long a=0, b=10, temp=0, i=1;
cout << "Input A Plz";
cout << "\n";
cin >> a;
while (b!=0)
{
b=a/2;
temp=temp+(a%2)*i;
a=b;
i=i*10;
cout << "\n";
}
cout << temp;
}
//구구단
#include <iostream.h>
void main()
{
int i, j;
for(i=2;i<10;i++)
{
for(j=2;j<10;j++)
{
cout << i << "x" << j << "=" << i*j;
cout << "\t";
}
cout << "\n";
}
}
