Eroare de compilare: user.cpp:8:18: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _Value, class _Hash, class _Pred, class _Alloc> class std::unordered_set’ unordered_set<MAX>h; ^ user.cpp:8:18: error: expected a type, got ‘2000’ user.cpp:8:18: error: template argument 2 is invalid user.cpp:8:18: error: template argument 3 is invalid user.cpp:8:18: error: template argument 4 is invalid user.cpp:8:20: error: invalid type in declaration before ‘;’ token unordered_set<MAX>h; ^ user.cpp: In function ‘int main()’: user.cpp:30:11: error: request for member ‘insert’ in ‘h’, which is of non-class type ‘int’ h.insert(v[0]); ^ user.cpp:36:22: error: request for member ‘find’ in ‘h’, which is of non-class type ‘int’ if(h.find(dif) == h.end()) ^ user.cpp:36:37: error: request for member ‘end’ in ‘h’, which is of non-class type ‘int’ if(h.find(dif) == h.end()) ^ user.cpp:39:19: error: request for member ‘insert’ in ‘h’, which is of non-class type ‘int’ h.insert(v[i]); ^ user.cpp:14:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("progr.in", "r", stdin); ^ user.cpp:15:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("progr.out", "w", stdout); ^ user.cpp:19:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:23:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:25:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^