/in/foo.cc: In function 'int main()':
/in/foo.cc:19:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   if(i=qingwa2-qingwa1)
                       ^
/in/foo.cc:33:28: error: invalid types 'int[int]' for array subscript
     if(n+qingwa[l]!=shizi[b])
                            ^
/in/foo.cc:37:30: error: invalid types 'int[int]' for array subscript
       if(n+qingwa[y]!=shizi[b]&&y>l)
                              ^
/in/foo.cc:51:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
      if(jiance=false) num++:
                     ^
/in/foo.cc:51:28: error: expected ';' before ':' token
      if(jiance=false) num++:
                            ^