Compilare: user.cpp: In function ‘int main()’: user.cpp:69:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < sol.size() && i <= 999; ++ i) ^ user.cpp:57:29: warning: ‘pos’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i > right || z[i - pos + 1] + i - 1 >= right) { ^ /tmp/ccnO46qD.o: In function `main': user.cpp:(.text.startup+0x4e): warning: the `gets' function is dangerous and should not be used.