Compilare: main.cpp: In function 'void solve(int)': main.cpp:23:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(h = 0; h < g[nod].size(); h++) | ~~^~~~~~~~~~~~~~~ main.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(h = 0; h < g[nod].size(); h++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void park(int)': main.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(h = 0; h < g[nod].size(); h++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void fly(int, long long int)': main.cpp:78:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(h = 0; h < g[nod].size(); h++) | ~~^~~~~~~~~~~~~~~