Compilare: main.cpp: In function 'int dfs(int, int, int)': main.cpp:48:1: warning: no return statement in function returning non-void [-Wreturn-type] 48 | } | ^ main.cpp: In function 'int main()': main.cpp:71:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(j=0;j<sol[i].size();j++) | ~^~~~~~~~~~~~~~