Compilare: main.cpp: In function 'int main()': main.cpp:17:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for ( int i = 0 ; i < v.size() ; i++ ) | ~~^~~~~~~~~~ main.cpp:7:9: warning: unused variable 'nr' [-Wunused-variable] 7 | int nr,nrap=1,n; | ^~ main.cpp:7:12: warning: unused variable 'nrap' [-Wunused-variable] 7 | int nr,nrap=1,n; | ^~~~