Compilare: main.cpp: In function 'int main()': main.cpp:30:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int k = 0; k < m[rest].size(); k++) | ~~^~~~~~~~~~~~~~~~ main.cpp:40:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int k = 0; k < m[rest].size(); k++) | ~~^~~~~~~~~~~~~~~~