/in/foo.cc: In function 'int main()':
/in/foo.cc:56:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int k=0;k<=n;++k)
     ^~~
/in/foo.cc:59:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for(int k=1;k<=n;++k)
  ^~~