Compilare: user.cpp: In function ‘int main()’: user.cpp:29:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<t.size();i++) ^ user.cpp:30:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (z[i+1+p.size()]==p.size()) sol.push_back(i); ^