Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:18:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i = 0; i != g[fiu].size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfsHeavy(int, int)': main.cpp:36:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i = 0; i != g[fiu].size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i != g[fiu].size(); i ++) | ~~^~~~~~~~~~~~~~~~