Compilare: user.cpp: In constructor ‘SAT2::SAT2(int)’: user.cpp:103:20: warning: ‘SAT2::visited’ will be initialized after [-Wreorder] vector<bool> visited; ^ user.cpp:102:19: warning: ‘std::vector<int> SAT2::postorder’ [-Wreorder] vector<int> postorder; ^ user.cpp:11:7: warning: when initialized here [-Wreorder] SAT2(const int n = 0): N(n), ^ user.cpp:102:19: warning: ‘SAT2::postorder’ will be initialized after [-Wreorder] vector<int> postorder; ^ user.cpp:101:20: warning: ‘std::vector<bool> SAT2::solution’ [-Wreorder] vector<bool> solution; ^ user.cpp:11:7: warning: when initialized here [-Wreorder] SAT2(const int n = 0): N(n), ^ user.cpp: In function ‘int main()’: user.cpp:133:40: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<bool>::reference {aka std::_Bit_reference}’ [-Wformat=] printf("%d ", S.solution[ i ]); ^ user.cpp:113:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(FIN, "r", stdin); ^ user.cpp:115:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(FOUT, "w", stdout); ^ user.cpp:117:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:123:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^