foo.cc:9:1: error: expected initializer before 'vector'
 vector<ULL> memo;
 ^~~~~~
foo.cc:11:1: error: 'ULL' does not name a type; did you mean 'NULL'?
 ULL n;
 ^~~
 NULL
foo.cc:13:10: error: variable or field 'get' declared void
 void get(ULL m, ULL &mmax, ULL &mmin)
          ^~~
foo.cc:13:10: error: 'ULL' was not declared in this scope
foo.cc:13:10: note: suggested alternative: 'NULL'
 void get(ULL m, ULL &mmax, ULL &mmin)
          ^~~
          NULL
foo.cc:13:17: error: 'ULL' was not declared in this scope
 void get(ULL m, ULL &mmax, ULL &mmin)
                 ^~~
foo.cc:13:17: note: suggested alternative: 'NULL'
 void get(ULL m, ULL &mmax, ULL &mmin)
                 ^~~
                 NULL
foo.cc:13:22: error: 'mmax' was not declared in this scope
 void get(ULL m, ULL &mmax, ULL &mmin)
                      ^~~~
foo.cc:13:28: error: 'ULL' was not declared in this scope
 void get(ULL m, ULL &mmax, ULL &mmin)
                            ^~~
foo.cc:13:28: note: suggested alternative: 'NULL'
 void get(ULL m, ULL &mmax, ULL &mmin)
                            ^~~
                            NULL
foo.cc:13:33: error: 'mmin' was not declared in this scope
 void get(ULL m, ULL &mmax, ULL &mmin)
                                 ^~~~
foo.cc: In function 'int main()':
foo.cc:28:19: error: 'n' was not declared in this scope
     while (cin >> n)
                   ^
foo.cc:32:4: error: 'ULL' was not declared in this scope
    ULL mmax = 0, mmin = 0;
    ^~~
foo.cc:32:4: note: suggested alternative: 'NULL'
    ULL mmax = 0, mmin = 0;
    ^~~
    NULL
foo.cc:33:11: error: 'mmax' was not declared in this scope
    get(n, mmax, mmin);
           ^~~~
foo.cc:33:17: error: 'mmin' was not declared in this scope
    get(n, mmax, mmin);
                 ^~~~
foo.cc:33:17: note: suggested alternative: 'main'
    get(n, mmax, mmin);
                 ^~~~
                 main
foo.cc:35:18: error: 'memo' was not declared in this scope
    auto p = find(memo.begin(), memo.end(), n);
                  ^~~~
foo.cc:45:3: error: 'memo' was not declared in this scope
   memo.clear();
   ^~~~

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