Compilare: user.cpp: In function ‘int main()’: user.cpp:124:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0;j<s[biggest_nr].size();j++) ^ user.cpp:134:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int p=0;p<s[i].size();p++) ^ user.cpp:172:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(q<s[i].size() and q<s[j].size()) ^ user.cpp:172:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(q<s[i].size() and q<s[j].size()) ^ user.cpp:251:84: 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++) ^