Compilare: main.cpp: In function 'int main()': main.cpp:49:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i=1;i<l.size();i++) | ~^~~~~~~~~ main.cpp:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i=1;i<c.size();i++) | ~^~~~~~~~~ main.cpp:103:21: warning: unused variable 'nr_1' [-Wunused-variable] 103 | int nr_1 = l2[i]; | ^~~~ main.cpp:104:21: warning: unused variable 'nr_2' [-Wunused-variable] 104 | int nr_2 = c2[i]; | ^~~~ main.cpp:105:21: warning: unused variable 'nr_3' [-Wunused-variable] 105 | int nr_3 = l2[i-1]; | ^~~~ main.cpp:106:21: warning: unused variable 'nr_4' [-Wunused-variable] 106 | int nr_4 = c2[i-1]; | ^~~~