/in/foo.cc: In function 'int main()':
/in/foo.cc:15:2: error: expected ',' or ';' before 'while'
  while(F<=L)
  ^~~~~
/in/foo.cc:13:6: warning: unused variable 's' [-Wunused-variable]
  int s=0;//最小组数
      ^
/in/foo.cc:14:6: warning: unused variable 'F' [-Wunused-variable]
  int F=0,T=n-1
      ^
/in/foo.cc:14:10: warning: unused variable 'T' [-Wunused-variable]
  int F=0,T=n-1
          ^
/in/foo.cc:30:1: error: expected '}' at end of input
 }
 ^