Compilare: user.cpp:11:29: warning: left shift count >= width of type [enabled by default] const long long INF = (1 << 60); ^ user.cpp: In function ‘void citire()’: user.cpp:42:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < i.second.size(); ++j) ^ user.cpp:53:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < i.second.size(); ++j) ^ user.cpp: In function ‘std::pair<int, int> GetRight(int, int)’: user.cpp:65:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos < line[x].size() - 1) ^ user.cpp: In function ‘std::pair<int, int> GetUp(int, int)’: user.cpp:79:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos < col[y].size() - 1) ^