Compilare: user.cpp: In function ‘int main()’: user.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(s)>maxi) {maxi=strlen(s);strcpy(aux,s);} ^ user.cpp:18:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(s)==maxi && strcmp(aux,s)>0) {maxi=strlen(s);strcpy(aux,s);} ^ user.cpp:36:14: warning: comparison with string literal results in unspecified behaviour [-Waddress] if(b[i]!="0") for(j=i+1;j<=n;j++) ^ user.cpp:40:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(nr=0;nr<strlen(b[j]) && st!=0 && tu<strlen(b[i]);nr++) ^ user.cpp:40:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(nr=0;nr<strlen(b[j]) && st!=0 && tu<strlen(b[i]);nr++) ^