Compilare: main.cpp: In function 'int main()': main.cpp:46:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 46 | if(C.size()-1!=m) | ~~~~~~~~~~^~~ main.cpp:52:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(i=0; i<C.size()-1; i++) | ~^~~~~~~~~~~ main.cpp: In function 'void euler(int)': main.cpp:60:9: warning: unused variable 'i' [-Wunused-variable] 60 | int i; | ^