Compilare: main.cpp: In function 'void sol(int, int, int)': main.cpp:64:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = pos + 1; i < factori.size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:114:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= factori.size(); i++) ~~^~~~~~~~~~~~~~~~~ main.cpp:121:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < solutii.size(); i++) ~~^~~~~~~~~~~~~~~~