Eroare de compilare: main.cpp:6:20: error: conflicting declaration 'std::vector<std::vector<int> > g' 6 | vector<vector<int>>g,gt,comps; | ^ main.cpp:4:10: note: previous declaration as 'std::ofstream g' 4 | ofstream g("ctc.out"); | ^ main.cpp: In function 'void dfs(int)': main.cpp:13:17: error: no match for 'operator[]' (operand types are 'std::ofstream' {aka 'std::basic_ofstream<char>'} and 'int') 13 | for(auto i:g[x]) | ^ main.cpp: In function 'int main()': main.cpp:30:39: error: no match for 'operator=' (operand types are 'std::ofstream' {aka 'std::basic_ofstream<char>'} and 'std::vector<std::vector<int> >') 30 | g=gt=comps=vector<vector<int>>(n+1); | ^ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:70, from main.cpp:1: /usr/include/c++/10/fstream:872:7: note: candidate: 'std::basic_ofstream<_CharT, _Traits>& std::basic_ofstream<_CharT, _Traits>::operator=(std::basic_ofstream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]' 872 | operator=(basic_ofstream&& __rhs) | ^~~~~~~~ /usr/include/c++/10/fstream:872:34: note: no known conversion for argument 1 from 'std::vector<std::vector<int> >' to 'std::basic_ofstream<char>&&' 872 | operator=(basic_ofstream&& __rhs) | ~~~~~~~~~~~~~~~~~^~~~~ main.cpp:36:10: error: no match for 'operator[]' (operand types are 'std::ofstream' {aka 'std::basic_ofstream<char>'} and 'int') 36 | g[x].push_back(y); | ^ Non zero exit status: 1