/in/foo.cc: In function 'int main()':
/in/foo.cc:18:10: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
          if(caozuo==0)
          ^~
/in/foo.cc:21:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
    if(caozuo==1)
    ^~