Compilare: main.cpp: In member function 'void Graf::bfs(int)': main.cpp:74:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i = 0; i < vecini[coada[inc]].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs(std::vector<bool>&, int)': main.cpp:92:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for(int i = 0; i < vecini[start].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_topo(std::vector<bool>&, int, std::vector<int>&)': main.cpp:114:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | for(i = 0; i < vecini[start].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_comp(std::vector<bool>&, int, std::vector<std::vector<int> >&, int)': main.cpp:134:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for(int i = 0; i < vecini[start].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_biconex(std::vector<bool>&, int, int, std::vector<int>&, std::vector<int>&, std::stack<int>&, std::vector<std::vector<int> >&, int&)': main.cpp:159:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 159 | for(i = 0; i < vecini[fiu].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs_muchii_critice(std::vector<bool>&, int, int, std::vector<int>&, std::vector<int>&, std::vector<std::vector<int> >&, int&)': main.cpp:198:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 198 | for(i = 0; i < vecini[fiu].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dijkstra(std::vector<std::vector<std::pair<int, int> > >&, std::vector<int>&)': main.cpp:233:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 233 | for(int i = 0; i < vecini_cost[1].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:242:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 242 | for(int i = 0; i < vecini_cost[nod_curent].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::prim(std::vector<std::vector<std::pair<int, int> > >&, int&, std::vector<std::pair<int, int> >&)': main.cpp:275:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 275 | for(int i = 0; i < vecini_cost[start].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:287:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 287 | for(int i = 0; i < vecini_cost[nod_curent].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::roy_floyd(int (*)[101])': main.cpp:304:67: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context] 304 | if(d[i][j] > d[i][k] + d[k][j] and (i-j)*(j-k)*(i-k)) | ~~~~~~~~~~~^~~~~~ main.cpp: In member function 'void Graf::dfs_darb(std::vector<bool>&, int, int, int&, int&)': main.cpp:317:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 317 | for(int i = 0; i < vecini[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:348:23: warning: unused variable 'numar_muchii' [-Wunused-variable] 348 | int numar_noduri, numar_muchii; | ^~~~~~~~~~~~