foo.cc: In function 'bool cmp(note, note)':
foo.cc:30:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
foo.cc: In function 'int main()':
foo.cc:82:37: warning: 'maxc' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout <<a[maxc].name<<endl<<a[maxc].zj<<endl<<sum;
                                     ^~
foo.cc:70:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(max<a[i+1].zj) //如果第a+1个学生的总奖金大于 max
      ~~~^~~~~~~~~~

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