View Compilation Error

0_0_39667206_26919.cpp:6:1: error: 'vector' does not name a type
    6 | vector<int> nums;
      | ^~~~~~
0_0_39667206_26919.cpp: In function 'int main()':
0_0_39667206_26919.cpp:12:16: error: 'nums' was not declared in this scope
   12 |         cin >> nums;
      |                ^~~~
0_0_39667206_26919.cpp:15:10: error: 'nums' was not declared in this scope
   15 |     sort(nums.begin(),nums.end(), greater<int>());
      |          ^~~~