Compilare: main.cpp: In function 'void dfs(int)': main.cpp:27:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (i=0;i<v[x].size();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:44:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (i=0;i<inv[x].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int j=0;j<comp[i].size();j++) | ~^~~~~~~~~~~~~~~ main.cpp:100:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for (j=0;j<v[i].size();j++) | ~^~~~~~~~~~~~ main.cpp:125:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 125 | for (j=0;j<comp[acum].size();j++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:139:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for (j=0;j<comp[acum].size();j++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:142:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 142 | for (i=0;i<v[nod].size();i++) | ~^~~~~~~~~~~~~~