Compilare: main.cpp: In function 'int main()': main.cpp:58:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 58 | if(sol.size()-1!=m){ | ~~~~~~~~~~~~^~~ main.cpp:62:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i=0;i<sol.size()-1;i++) | ~^~~~~~~~~~~~~ main.cpp:23:5: warning: unused variable 'nr' [-Wunused-variable] 23 | int nr=0; | ^~