/in/foo.cc: In function 'int bingji(int*, int*, int*, int, int, int)':
/in/foo.cc:39:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=0;i<=nb-1;i++)
  ^~~
/in/foo.cc:45:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   return nc;
   ^~~~~~