/in/foo.cc:11:10: error: 'LONG_MAX' was not declared in this scope
 int ans1=LONG_MAX,ans2;
          ^~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:43:17: error: 'ans2' was not declared in this scope
                 ans2=i;
                 ^~~~
/in/foo.cc:47:30: error: 'ans2' was not declared in this scope
     printf("%d %d\n",min(sum-ans2,ans2),max(sum-ans2,ans2));
                              ^~~~