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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5. 	const int size = 9;
  6.  
  7.     for( int j = 0; j < size; ++j ) {
  8.         for( int i = 0; i < size; ++i ) 
  9. 	        std::cout << (i/3 + j/3*3) << " ";
  10. 	    std::cout << std::endl;
  11.     }
  12. }
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
stdout
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0 0 0 1 1 1 2 2 2 
0 0 0 1 1 1 2 2 2 
0 0 0 1 1 1 2 2 2 
3 3 3 4 4 4 5 5 5 
3 3 3 4 4 4 5 5 5 
3 3 3 4 4 4 5 5 5 
6 6 6 7 7 7 8 8 8 
6 6 6 7 7 7 8 8 8 
6 6 6 7 7 7 8 8 8
https://ideone.com/zlzWhZ
language:
C++14 (clang 8.0)
created:
6 years ago
visibility:
public

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