__hqt__ @ 2023-11-07 20:13:36
求调
题目:P1219
#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
int n,a[101],b[101],c[101],ans[101],m=0;
void A(int h)
{
if(h>n)
{
m++;
if(m<=3)
{
for(int j=1;j<=n;j++)
{
cout<<ans[j]<<' ';
}
cout<<endl;
}
return;
}
for(int i=1;i<=n;i++)
{
if(a[i]==0 && b[(h-i+n)%n]==0 && c[(h+i+n)%n]==0)
{
a[i]=1;
b[(h-i+n)%n]=1;
c[(h+i+n)%n]=1;
ans[h]=i;
A(h+1);
a[i]=0;
b[(h-i+n)%n]=0;
c[(h+i+n)%n]=0;
}
}
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>n;
A(1);
cout<<m<<endl;
}
by wanglexi @ 2023-11-09 17:15:34
if(a[i]==0 && b[(h-i+n)%n]==0 && c[(h+i+n)%n]==0)
你
by wanglexi @ 2023-11-09 17:15:56
@hqt_
by __hqt__ @ 2023-11-10 18:58:01
谢谢大佬,此贴已结束