Compilare: main.cpp: In function 'void bfs(int, int)': main.cpp:32:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i = 0; i < graf[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:118:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 118 | for(int i = 0; i < input.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:131:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for(int i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~