Compilare: user.cpp: In function ‘int main()’: user.cpp:20:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s[i].size()>maxim)maxim=s[i].size(); ^ user.cpp:24:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s[i].size()==maxim) ^ user.cpp:40:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<s[j].size();++k) ^ user.cpp:44:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nr==s[i].size()) ^ user.cpp:62:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<interesant.size();++i) ^