Compilare: user.cpp: In function ‘int main()’: user.cpp:26:32: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (!l.empty() && c - l.back() == 1 || ^ user.cpp:36:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (!l.empty() && l.size() == inchideri.back()) { ^ user.cpp:58:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l.size() > 1 && x-1 > 0 && x - 1 < l.size() && ^ user.cpp:10:20: warning: unused variable ‘i’ [-Wunused-variable] int n, cont=0, i; ^