Eroare de compilare: main.cpp: In member function 'void graf::new_mat(int, int)': main.cpp:85:5: error: 'mat' was not declared in this scope 85 | mat[nod1-1][nod2-1] = 1; | ^~~ main.cpp: In member function 'void graf::afisare_mat(std::ostream&)': main.cpp:119:17: error: 'mat' was not declared in this scope 119 | fg<<mat[i][j]<<" "; | ^~~ main.cpp: In member function 'void graf::afisare_lista()': main.cpp:128:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for(auto j=0 ; j<lista[i].size(); j++) | ~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::afisare_muchii()': main.cpp:149:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 149 | for(auto i=0 ; i<muchii.size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In member function 'bool graf::havel_hakimi_verificare(std::vector<int>&)': main.cpp:307:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 307 | if( cnt > secv.size()) return false; //verific ca nu ies din secventa | ~~~~~^~~~~~~~~~~~~ main.cpp:291:23: warning: unused variable 'nr' [-Wunused-variable] 291 | int sum= 0, ok=1, nr; | ^~ main.cpp: In member function 'void graf::royfloyd()': main.cpp:797:20: error: 'mat' was not declared in this scope 797 | if(mat[j][i] && mat[i][k] && (mat[j][k] > mat[j][i] + mat[i][k] || !mat[j][k]) && j!=k) | ^~~ main.cpp: In member function 'void graf::solve_royfloyd()': main.cpp:812:13: error: 'mat' was not declared in this scope 812 | mat[i][j] = a; | ^~~ main.cpp: In member function 'void graf::solve_euler()': main.cpp:1031:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 1031 | for(int i=0 ; i< rez.size() -1 ; i++) | ~^~~~~~~~~~~~~~~ main.cpp:991:9: warning: unused variable 'start' [-Wunused-variable] 991 | int start=0; | ^~~~~ main.cpp:992:9: warning: unused variable 'dest' [-Wunused-variable] 992 | int dest=n-1; | ^~~~ Non zero exit status: 1