[cpp]
if (cases) cout<
这个地方我WA了好久，话说这不应该是Presentation Error么！
[cpp]
#include
#include
#include
#include
using namespace std;
int main()
{
int cases;
cin>>cases;
char ch=getchar();
while (cases--)
{
char black[10];
cin.getline(black,10);
int N,H;
cin>>N>>H;
char str[20];
memset(str,'0',N);
str[N]='\0';
for (int i=0;i
{
str[N-1-i]='1';
}
do
{
for (int i=0;i
cout<
cout<
}while(next_permutation(str,str+N));
if (cases) cout<
}
return 0;
}