foo.cpp: In function 'void zl()':
foo.cpp:45:20: error: 'jc' was not declared in this scope
         while (jc(i)==0);
                    ^
foo.cpp: In function 'int main()':
foo.cpp:146:24: warning: unknown conversion type character 'l' in format [-Wformat=]
     printf("%lld\n",ans);    
                        ^
foo.cpp:146:24: warning: too many arguments for format [-Wformat-extra-args]
foo.cpp:132:13: warning: unused variable 'j' [-Wunused-variable]
     int i , j;
             ^