foo.cc: In function ‘int main()’:
foo.cc:7:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
    7 |         for(int i=1;i<=n;i++)
      |         ^~~
foo.cc:9:12: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
    9 |            for(int j=n;j>=1;j--)
      |            ^~~