Compilare: user.cpp: In function ‘void compute_transitions()’: user.cpp:49:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < states[cod].size(); ++i) ^ user.cpp:51:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= cur.size(); ++i) ^ user.cpp:52:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((i == 0 || cur[i - 1]) && (i == cur.size() || cur[i])) { ^ user.cpp:57:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i; j < cur.size(); ++j) ^ user.cpp:59:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < next.size(); ++j) { ^