Compilare: main.cpp: In function 'int main()': main.cpp:29:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(i=0;i<divi.size();i++) | ~^~~~~~~~~~~~ main.cpp:31:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(j=i;j<divi.size();j++) | ~^~~~~~~~~~~~ main.cpp:17:15: warning: unused variable 'n' [-Wunused-variable] 17 | long long n,a,b,c,i,j; | ^