/in/foo.cc: In function 'int read()':
/in/foo.cc:7:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  while(ch>='0'&&ch<='9')x=x*10+ch-'0',ch=getchar(); return x;
  ^~~~~
/in/foo.cc:7:53: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
  while(ch>='0'&&ch<='9')x=x*10+ch-'0',ch=getchar(); return x;
                                                     ^~~~~~