Compilare: main.cpp: In function 'int main()': main.cpp:34:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i = 0; i < v[crt].size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp:51:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int j = 0; j < v[it.first].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:61:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~