Submission #63273619

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#include<bits/stdc++.h>
#define inf long long
#define pii pair<int,int>
#define p1 first
#define p2 second
using namespace std;
const int maxn=50+5;
int n;
char a[maxn][maxn];
int main()
{
  //freopen("c.in","r",stdin);
  //freopen("c.out","w",stdout);
  cin>>n;
  for(int i=1;i<=n;i++)
  {
    int j=n+1-i;
    if(i<=j)
    {
      for(int x=i;x<=j;x++)
      {
 
 
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#include<bits/stdc++.h>
#define inf long long
#define pii pair<int,int>
#define p1 first
#define p2 second
using namespace std;
const int maxn=50+5;
int n;
char a[maxn][maxn];
int main()
{
	//freopen("c.in","r",stdin);
	//freopen("c.out","w",stdout);
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		int j=n+1-i;
		if(i<=j)
		{
			for(int x=i;x<=j;x++)
			{
				for(int y=i;y<=j;y++)
				{
					a[x][y]=(i%2)?'#':'.';
				}
			}
		}
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=n;j++)
		{
			cout<<a[i][j];
		}
		cout<<'\n';
	}
	return 0;
}

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