Compilare: main.cpp: In function 'int distReal(int)': main.cpp:85:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < r2.size() && r2[pos].first <= el) ~~~~^~~~~~~~~~~ main.cpp: In function 'int distUman(int)': main.cpp:92:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < u2.size() && u2[pos].first <= el) ~~~~^~~~~~~~~~~