View Compilation Error

0_0_39459692_14413.cpp: In instantiation of 'void Map<T>::build() [with T = int]':
0_0_39459692_14413.cpp:121:13:   required from here
0_0_39459692_14413.cpp:68:13: error: 'sort' was not declared in this scope; did you mean 'short'?
   68 |         sort(nums.begin(), nums.end());
      |         ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
      |         short
0_0_39459692_14413.cpp:69:26: error: 'unique' was not declared in this scope
   69 |         nums.erase(unique(nums.begin(), nums.end()), nums.end());
      |                    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~