Weizhuo_Zhao @ 2023-07-28 14:36:21
#include<iostream>
using namespace std;
int a[15],k,c=0;
long long ans;
bool q(int n){
for(int i=1;i<n;i++)
if(a[i]==a[n]||i-a[i]==n-a[n]||i+a[i]==n+a[n])
return 0;
return 1;
}
void dfs(int n){
if(n==k+1){
ans++;
for(int i=1;i<=k;i++){
if(c>=3){
return;
}
printf("%d ",a[i]);
}
c++;
printf("\n");
}
else{
for(int i=1;i<=k;i++){
a[n]=i;
if(q(n)){
dfs(n+1);
}
}
}
}
int main(){
cin>>k;
dfs(1);
cout<<ans;
return 0;
}
by Zz__Cc @ 2023-07-28 15:11:08
@Weizhuo_Zhao 吸个氧就过了
by Weizhuo_Zhao @ 2023-07-28 15:50:48
@Zz__Cc ???
by Zz__Cc @ 2023-07-28 16:01:11
@Weizhuo_Zhao ???
by Zz__Cc @ 2023-07-28 16:01:22
@Weizhuo_Zhao 就是开O2
by Weizhuo_Zhao @ 2023-07-29 08:21:32
@Zz__Cc ???化学名???
by Zz__Cc @ 2023-07-29 10:04:05
@Weizhuo_Zhao 大哥,O2优化
by Weizhuo_Zhao @ 2023-07-29 11:15:49
@Zz__Cc 哦哦哦,脑子傻了!
by Weizhuo_Zhao @ 2023-07-29 22:32:39
@Zz__Cc AC啦!谢啦!!☆⌒(*^-゜)v,为什么发那么晚:因为在我发:哦哦哦,脑子傻了! 之后,教练一直将CFP-JAK的纸面的考点,不然开电脑!