Compilare: user.cpp: In function ‘int main()’: user.cpp:80:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0;j<s[biggest_nr].size();j++) ^ user.cpp:90:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int p=0;p<s[i].size();p++) ^ user.cpp:128:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(q<s[i].size() and q<s[j].size()) ^ user.cpp:128:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(q<s[i].size() and q<s[j].size()) ^ user.cpp:182:84: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=t[best_sorrend[i-1]][best_sorrend[i]];j<s[best_sorrend[i]].size();j++) ^