Compilare: main.cpp: In function 'void DFS(int, int, int)': main.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i=0; i<g[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int, int)': main.cpp:43:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int i=0; i<g[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:144:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 144 | for(int j=0; j<g[i].size(); j++) | ~^~~~~~~~~~~~ main.cpp:164:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<metrou>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 164 | for(int i=0; i<drum.size(); i++) | ~^~~~~~~~~~~~ main.cpp:188:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<metrou>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 188 | for(j=0; j<drum.size(); j++) | ~^~~~~~~~~~~~ main.cpp:127:12: warning: unused variable 'x' [-Wunused-variable] 127 | int m, x, y, MAX=0; fin >> n >> m; | ^ main.cpp:127:15: warning: unused variable 'y' [-Wunused-variable] 127 | int m, x, y, MAX=0; fin >> n >> m; | ^