Compilare: main.cpp: In function 'int main()': main.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int j=0;j<M.size();j++){ | ~^~~~~~~~~ main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int j=0;j<aux.size();j++){ | ~^~~~~~~~~~~ main.cpp:37:15: warning: unused variable 'mn' [-Wunused-variable] 37 | float mn=1e9; | ^~