Compilare: user.cpp: In function ‘int getmed(int&)’: user.cpp:36:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind < s.size() && s[ind] != ']') ^ user.cpp:38:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[ind] == '-' || s[ind] <= '9' && s[ind] >= '0') ^ user.cpp: In function ‘int getsum(int&)’: user.cpp:60:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind < s.size() && s[ind] != ')') ^ user.cpp:62:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[ind] == '-' || s[ind] <= '9' && s[ind] >= '0') ^ user.cpp: In function ‘int main()’: user.cpp:92:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size(); ++i) ^ user.cpp:94:34: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[i] == '-' || s[i] <= '9' && s[i] >= '0') ^