Compilare: main.cpp: In function 'void DFS(int, int, int)': main.cpp:22:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i=0; i<g[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int, int)': main.cpp:44:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i=0; i<g[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:145:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 145 | for(int j=0; j<g[i].size(); j++) | ~^~~~~~~~~~~~ main.cpp:165:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<metrou>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 165 | for(int i=0; i<drum.size(); i++) | ~^~~~~~~~~~~~ main.cpp:189:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<metrou>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 189 | for(j=0; j<drum.size(); j++) | ~^~~~~~~~~~~~ main.cpp:128:12: warning: unused variable 'x' [-Wunused-variable] 128 | int m, x, y, MAX=0; fin >> n >> m; | ^ main.cpp:128:15: warning: unused variable 'y' [-Wunused-variable] 128 | int m, x, y, MAX=0; fin >> n >> m; | ^