foo.cc: In function 'int main()':
foo.cc:13:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   13 |   for(j=1;j<=2*i-1;j++)
      |   ^~~
foo.cc:15:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   15 |    cout<<endl;
      |    ^~~~

[Hydro](https://hydro.ac)提供评测服务