harta2.cpp: In function `bool randliber(std::vector<int, std::allocator<int> >)': harta2.cpp:8: warning: comparison between signed and unsigned integer expressions harta2.cpp: In function `bool colliber(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >, int)': harta2.cpp:22: warning: comparison between signed and unsigned integer expressions harta2.cpp: In function `int main()': harta2.cpp:159: warning: comparison between signed and unsigned integer expressions harta2.cpp:169: warning: comparison between signed and unsigned integer expressions harta2.cpp:62: warning: `int maxc' might be used uninitialized in this function