运行 ID: 15509

Main.cc: In function ‘int dfs(int, int)’:
Main.cc:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^
/bin/ld: failed to convert GOTPCREL relocation; relink with --no-relax
collect2: error: ld returned 1 exit status