Compilare: main.cpp: In function 'int main()': main.cpp:22:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int k=0; k<m[rest].size(); k++) | ~^~~~~~~~~~~~~~~ main.cpp:32:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int k=0; k<m[rest].size(); k++) | ~^~~~~~~~~~~~~~~