Compilare: main.cpp: In function 'void insertReal(int, int)': main.cpp:61:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < r2.size() && r2[pos].first <= val) ~~~~^~~~~~~~~~~ main.cpp:63:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos == r2.size()) ~~~~^~~~~~~~~~~~ main.cpp: In function 'void insertUman(int, int)': main.cpp:73:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < u2.size() && u2[pos].first <= val) ~~~~^~~~~~~~~~~ main.cpp:75:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos == u2.size()) ~~~~^~~~~~~~~~~~