Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int i = 0; i < v[k].size(); i ++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i = 0; i < v2[k].size(); i ++) | ~~^~~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:31:5: error: redefinition of 'int main()' 31 | int main() | ^~~~ main.cpp:5:5: note: 'int main()' previously defined here 5 | int main() | ^~~~ main.cpp: In function 'int main()': main.cpp:47:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int j = 0; j < v[i].size(); j ++) | ~~^~~~~~~~~~~~~ main.cpp:51:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int j = 0; j < qq[i].size(); j ++) | ~~^~~~~~~~~~~~~~ Non zero exit status: 1