Compilare: main.cpp: In function 'void here_we_go_again(int)': main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while(it[nod] < g[nod].size()){ | ~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:71:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 0; i < mkay.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:84:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for(int i = 0; i < lista_aia.size(); i++){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp:93:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for(int i = 0; i < john.size(); i++) if(!john[i].empty()) cnt++; | ~~^~~~~~~~~~~~~ main.cpp:96:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for(int i = 0; i < john.size(); i++){ | ~~^~~~~~~~~~~~~