Compilare: main.cpp: In function 'int mex(std::vector<int>)': main.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i = 0; i < aux.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In function 'std::vector<int> solve(int)': main.cpp:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(int h = 0; h < g[smax].size(); h++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:50:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(int h2 = 0; h2 < g[to].size(); h2++) | ~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:80:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i = 0; i < perm.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:83:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(int j = 0; j < g2[node].size(); j++) | ~~^~~~~~~~~~~~~~~~~