Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:9:5: error: ‘unordered_set’ was not declared in this scope unordered_set<long long> h; ^ user.cpp:9:19: error: expected primary-expression before ‘long’ unordered_set<long long> h; ^ user.cpp:9:19: error: expected ‘;’ before ‘long’ user.cpp:10:15: error: variable ‘std::ifstream f’ has initializer but incomplete type ifstream f("dtcsu.in"); ^ user.cpp:11:10: error: ‘i’ was not declared in this scope for (i = 0; i < entries; i++) ^ user.cpp:15:13: error: ‘h’ was not declared in this scope h.insert(N); ^ user.cpp:19:10: error: ‘i’ was not declared in this scope for (i = 0; i < Q; i++) ^ user.cpp:22:18: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] while (N & 1 == 0) ^ user.cpp:24:13: error: ‘h’ was not declared in this scope if (h.find(N) != h.end()) ^ user.cpp:29:15: error: variable ‘std::ofstream g’ has initializer but incomplete type ofstream g("dtcsu.out"); ^