Compilare: user.cpp: In function ‘int cautbin(int, int)’: user.cpp:20:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(r + pas <= a.size() && v[caracter][r + pas] < nr) ~~~~~~~~^~~~~~~~~~~ user.cpp: In function ‘bool OK(int)’: user.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < b.size(); i++) ~~^~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= a.size(); i++) ~~^~~~~~~~~~~ user.cpp:44:15: warning: unused variable ‘j’ [-Wunused-variable] int q, i, j, balbaiala; ^ user.cpp:44:18: warning: unused variable ‘balbaiala’ [-Wunused-variable] int q, i, j, balbaiala; ^~~~~~~~~