Eroare de compilare: In file included from /usr/include/c++/10/backward/hash_set:60, from main.cpp:3: /usr/include/c++/10/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated. [-Wcpp] 32 | #warning \ | ^~~~~~~ main.cpp:10:1: error: 'hash_set' does not name a type 10 | hash_set<int> H; | ^~~~~~~~ main.cpp:11:1: error: 'hash_set' does not name a type 11 | hash_set<int>::iterator it; | ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:25:9: error: 'H' was not declared in this scope 25 | H.insert(x); | ^ main.cpp:28:5: error: 'it' was not declared in this scope; did you mean 'i'? 28 | it = H.find(A); | ^~ | i main.cpp:28:10: error: 'H' was not declared in this scope 28 | it = H.find(A); | ^ Non zero exit status: 1