Compilare: main.cpp: In function 'void apm()': main.cpp:45:22: warning: comparison of integer expressions of different signedness: 'std::vector<muchie>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 45 | if(sol.size()==n-1) | ~~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i=0;i<=sol.size();i++){ | ~^~~~~~~~~~~~ main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int j=0;j<=v.size();j++) | ~^~~~~~~~~~ main.cpp:56:9: warning: unused variable 'c' [-Wunused-variable] 56 | int c=0; | ^