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  1. #include <iostream>
  2. using namespace std;
  3. int main() {
  4.     int i, j, k, m;
  5.     int n;
  6.     cin>>n;
  7.     for(i=1; i<=n ; i++)
  8.     {
  9.         for(j=1; j<=i; j++)
  10.         {
  11.             cout<<j<<" ";
  12.         }
  13.         for(k=1; k<= 2n-2i-1; k++)
  14.         {
  15.             cout<<" ";
  16.         }
  17.         for(m=i; m>=1; m--)
  18.         {
  19.             cout<<m<<" ";
  20.         }
  21.         cout<<"\n";
  22.     }
  23. 	return 0;
  24. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:13:22: error: unable to find numeric literal operator ‘operator""n’
         for(k=1; k<= 2n-2i-1; k++)
                      ^~
stdout
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Standard output is empty
https://ideone.com/8AyMIw
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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