boolean combination

n 길이의

boolean combination 출력

#include <stdio.h>

void printboolean(int a[],int index, int n)

{

int i;

if (index == n)

{

for (i=0;i<n;i++){

if (a[i] == 1)

printf ("true ");

else

printf("false ");

}

printf ("\n");

return; 

}

a[index]=1;

printboolean(a,index+1,n);

a[index]=0;

printboolean(a,index+1,n);

}

int main(void)

{

int n;

int arr[1000]={0,};

scanf("%d",&n);

printboolean(arr,0,n);

}