Eroare de compilare: main.cpp: In member function 'void SegTree::build(std::vector<long long int>&)': main.cpp:66:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (start < v.size ()) start <<= 1; ~~~~~~^~~~~~~~~~~ main.cpp:68:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size (); i++) { ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:96:5: error: 'fin' was not declared in this scope fin >> n >> m; ^~~ main.cpp:119:9: error: 'fout' was not declared in this scope fout << t.get (l, r) << '\n'; ^~~~ Non zero exit status: 1