Compilare: main.cpp: In function 'void dfs(int)': main.cpp:23:26: 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 < b.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:39:15: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] 39 | memset(k, 0, G); | ~~~~~~^~~~~~~~~