Compilare: user.cpp: In function ‘void check()’: user.cpp:20:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[0] == '.' && l == 1 || l == 3 && s[1] == '.' && s[2] == '.') { ^ user.cpp:26:36: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[0] == '?' || s[0] == '!' && l == 1) { ^ user.cpp:39:44: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] else if (i < l && ('a' <= s[i] && s[i] <= 'z' || 'A' <= s[i] || s[i] <= 'Z')) nrcuv++; ^ user.cpp: In function ‘void rezolva()’: user.cpp:52:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fraze.size(); i++) g << fraze[i] << '\n'; ^