foo.cc:6: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    6 | #pragma comment(linker, "/STACK:36777216")
      | 
foo.cc: In function 'std::ostream& operator<<(std::ostream&, std::array<_Tp, _Nm>&)':
foo.cc:34:19: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   34 | #define REP(i, n) for (int i=0;i<n;++i)
      |                   ^~~
foo.cc:224:5: note: in expansion of macro 'REP'
  224 |     REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
      |     ^~~
foo.cc:224:37: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  224 |     REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
      |                                     ^~
foo.cc: In function 'std::ostream& operator<<(std::ostream&, std::vector<_Tp>&)':
foo.cc:34:19: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   34 | #define REP(i, n) for (int i=0;i<n;++i)
      |                   ^~~
foo.cc:228:5: note: in expansion of macro 'REP'
  228 |     REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
      |     ^~~
foo.cc:228:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  228 |     REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
      |                                         ^~

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