Compilare: main.cpp: In function 'void dfs(int, std::vector<std::vector<int> >&, std::vector<int>&, std::vector<int>&, int)': main.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for (int i=0;i<tree[node].size();i++) { | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void cadane(int, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (int i=0;i<tree[node].size();i++) { | ~^~~~~~~~~~~~~~~~~~