/in/foo.cc: In function 'int main()':
/in/foo.cc:18:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (i=1;i<=n;i++)
  ^~~
/in/foo.cc:20:11: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
           for(i=1;i<n;i++)
           ^~~
/in/foo.cc:27:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for (i=1;i<=n-1;i++)
    ^~~
/in/foo.cc:29:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for (j=i+1;j<=n;j++)
     ^~~

KeyError('output/output0.txt',)