• 个人简介

    #include<bits/stdc++.h>
    using namespace std;
    long long a[19][19],n;
    int main()
    {
        cin>>n;
        for(int i=1;i<=(n+1)/2;i++)
        {
        	for(int j=i;j<=(n-i+1);j++)
        	 a[i][j]=i;
        	for(int j=i;j<=(n-i+1);j++)
        	 a[j][i]=i;
        	for(int j=i;j<=n-i+1;j++)
        	 a[n-i+1][j]=i;
        	for(int j=i;j<=n-i+1;j++)
        	 a[j][n-i+1]=i;
    	}
    	for(int i=1;i<=n;i++)
    	{
    		for(int j=1;j<=n;j++)
    			cout<<a[i][j]<<" ";
    		cout<<endl;
    	}
    	return 0;
    }
    
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题目标签

2021
1
CSP-J
1