View Compilation Error

0_0_38831075_8082.cpp: In static member function 'static int KMP<T>::longestSubsequence(const std::vector<int>&, int)':
0_0_38831075_8082.cpp:112:17: error: 'map' was not declared in this scope
  112 |                 map<int, int>ans;
      |                 ^~~
0_0_38831075_8082.cpp:5:1: note: 'std::map' is defined in header '<map>'; did you forget to '#include <map>'?
    4 | #include<vector>
  +++ |+#include <map>
    5 | using namespace std;
0_0_38831075_8082.cpp:112:21: error: expected primary-expression before 'int'
  112 |                 map<int, int>ans;
      |                     ^~~
0_0_38831075_8082.cpp:116:25: error: 'ans' was not declared in this scope; did you mean 'abs'?
  116 |                         ans[arr[i]] = max(ans[arr[i]], ans[arr[i] - difference] + 1);
      |                         ^~~
      |                         abs