/in/foo.cc: In function 'int main()':
/in/foo.cc:10:28: error: invalid conversion from 'int' to 'void*' [-fpermissive]
  memset(ans,127,sizeof(ans));
                            ^
In file included from /usr/include/memory.h:29:0,
                 from /in/foo.cc:3:
/usr/include/string.h:62:14: note:   initializing argument 1 of 'void* memset(void*, int, size_t)'
 extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1));
              ^~~~~~