摘要：#include<iostream>#include<algorithm>#include<vector>#include<cstring>using namespace std;int chess[9][9];int arr[9][9];int cnt=0,sum=0;bool check(int 阅读全文

摘要：#include<iostream>#include<algorithm>//lower_bound函数 using namespace std;typedef long long ll;const int N = 1e6+5;int n,z;ll num[N];int main(){ cin>>n 阅读全文