Eroare de compilare: user.cpp:15:7: error: ‘vector’ was not declared in this scope set < vector < int > > used; ^~~~~~ user.cpp:15:20: error: template argument 1 is invalid set < vector < int > > used; ^ user.cpp:15:20: error: template argument 2 is invalid user.cpp:15:20: error: template argument 3 is invalid user.cpp:15:22: error: expected unqualified-id before ‘>’ token set < vector < int > > used; ^ user.cpp:16:1: error: ‘vector’ does not name a type vector < int > sum; ^~~~~~ user.cpp: In function ‘int main()’: user.cpp:45:8: error: ‘sum’ was not declared in this scope sum.pb(a[i]); ^~~ user.cpp:51:11: error: ‘used’ was not declared in this scope if(used.count(sum) == 0){ ^~~~