Compilare: main.cpp: In function 'int main()': main.cpp:86:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int idx = 0; idx < numere.size(); idx++) ~~~~^~~~~~~~~~~~~~~ main.cpp:88:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int idx2 = idx; idx2 < numere.size(); idx2++) ~~~~~^~~~~~~~~~~~~~~ main.cpp:102:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < numere.size(); i++) ~~^~~~~~~~~~~~~~~