Compilare: user.cpp: In function ‘int main()’: user.cpp:20:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<s.size()-1;++i){ ^ user.cpp:21:52: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[i]==' ' or s[i]=='-' and s[i+1]>='a' and s[i+1]<='z' or s[i+1]>='A' and s[i+1]<='Z'){ ^ user.cpp:21:83: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[i]==' ' or s[i]=='-' and s[i+1]>='a' and s[i+1]<='z' or s[i+1]>='A' and s[i+1]<='Z'){ ^ user.cpp:24:23: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (s[i]>='a' and s[i]<='z' or s[i]>='A' and s[i]<='Z'){ ^