foo.cc: In function 'int main()':
foo.cc:24:22: error: invalid conversion from 'LL' {aka 'long long int'} to 'const char*' [-fpermissive]
   24 |                 puts(res);
      |                      ^~~
      |                      |
      |                      LL {aka long long int}
In file included from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/cstdio:42,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/ext/string_conversions.h:43,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/bits/basic_string.h:6608,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/string:55,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/bits/locale_classes.h:40,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/bits/ios_base.h:41,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/ios:42,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/ostream:38,
                 from /nix/store/wy4ywjsch9q2hj5lphqjdg9p2kf7w0ls-gcc-11.3.0/include/c++/11.3.0/iostream:39,
                 from foo.cc:1:
/nix/store/iczlqwdj10xiz3mmms6adnra0mn3ljk1-glibc-2.35-224-dev/include/stdio.h:661:30: note:   initializing argument 1 of 'int puts(const char*)'
  661 | extern int puts (const char *__s);
      |                  ~~~~~~~~~~~~^~~
foo.cc: In function 'LL Find(LL)':
foo.cc:17:1: warning: control reaches end of non-void function [-Wreturn-type]
   17 | }
      | ^

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