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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main(){
  5.     int n;
  6.     while(cin>>n){
  7.  
  8.         if(n<=4) cout<<"-1"<<endl;
  9.         else if(n%2==0){
  10.             for(int i=0;i<n;i++){
  11. 	            for(int j=0;j<n;j++){
  12.                 if(j==0||j==n-1||i==j&&i<(n/2)||j==n-1-i&&i<(n/2)) cout<<"W ";
  13.  
  14. 		        else cout<<"  ";
  15. 	            }
  16.                 cout<<endl;
  17.             }
  18.             cout<<endl;
  19.         }
  20.         else{
  21.             for(int i=0;i<n;i++){
  22. 	            for(int j=0;j<n;j++){
  23.                 if(j==0||j==n-1||i==j&&i<=(n/2)||j==n-1-i&&i<(n/2)) cout<<"W ";
  24. 		        else cout<<"  ";
  25. 	            }
  26.                 cout<<endl;
  27.             }
  28.             cout<<endl;
  29.         }
  30.  
  31.     }
  32.     return 0;
  33.     }
  34.  
  35.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/H0TNVI
language:
C++14 (gcc 8.3)
created:
18 hours ago
visibility:
secret

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