Compilare: user.cpp: In function ‘int main()’: user.cpp:93:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind < p.size () && p[ind].first.first == 1) ^ user.cpp:97:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int l = 2; l <= mn, ind < p.size (); l++) { ^ user.cpp:97:23: warning: left operand of comma operator has no effect [-Wunused-value] for (int l = 2; l <= mn, ind < p.size (); l++) { ^ user.cpp:108:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind < p.size () && p[ind].first.first == l) { ^ user.cpp:115:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < p.size (); i++) ^