Eroare de compilare: user.cpp:3:1: error: ‘ifstream’ does not name a type ifstream f("costuri.in"); ^ user.cpp:4:1: error: ‘ofstream’ does not name a type ofstream g("costuri.out"); ^ user.cpp:5:1: error: ‘map’ does not name a type map<int, std::vector<int>>M; ^ user.cpp: In function ‘int main()’: user.cpp:9:5: error: ‘f’ was not declared in this scope f>>n; ^ user.cpp:15:15: error: ‘M’ was not declared in this scope if(!x)M[0].l(x); ^ user.cpp:23:13: error: ‘M’ was not declared in this scope M[z].l(q); ^ user.cpp:30:12: error: ‘M’ was not declared in this scope if(M[c].size()>=p)g<<M[c][p-1]<<"\n"; ^ user.cpp:30:27: error: ‘g’ was not declared in this scope if(M[c].size()>=p)g<<M[c][p-1]<<"\n"; ^ user.cpp:31:14: error: ‘g’ was not declared in this scope else g<<-1<<"\n"; ^