Compilare: main.cpp: In function 'int main()': main.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < divi.size(); i++) { ~~^~~~~~~~~~~~~ main.cpp:27:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i; j < divi.size(); j++) ~~^~~~~~~~~~~~~ main.cpp:13:7: warning: unused variable 'aux' [-Wunused-variable] ll aux = b * b; ^~~