foo.cc: In function 'int main()':
foo.cc:10:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
     for(s1=123;s<330;s1++)
                  ^~~
foo.cc:12:10: error: 'a' was not declared in this scope
   memset(a,0,sizeof(a);
          ^
foo.cc:18:6: error: 'j' was not declared in this scope
   if(j==10) ans++;
      ^