/in/foo.cc: In function 'int main()':
/in/foo.cc:136:25: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
     printf("%llf.",inter);
                         ^
/in/foo.cc:137:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
     if(success=false){
                     ^
/in/foo.cc:141:38: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
         case notx:printf("%llf",small);break;
                                      ^
/in/foo.cc:142:40: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
         case chun:printf("(%llf)",small);break;
                                        ^
/in/foo.cc:143:50: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
         case hun:printf("%llf(%llf)",small,small2);break;
                                                  ^
/in/foo.cc:143:50: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
/in/foo.cc:85:9: warning: unused variable 'blen' [-Wunused-variable]
     int blen=longer(b);
         ^~~~
/in/foo.cc:90:9: warning: variable 'dot' set but not used [-Wunused-but-set-variable]
     int dot;
         ^~~
/in/foo.cc:129:13: warning: 'start_jl' may be used uninitialized in this function [-Wmaybe-uninitialized]
             if(c/b==start_jl){
             ^~