Compilare: user.cpp: In lambda function: user.cpp:21:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return i >= ord.size() ? 0 : ord[i][n]+1; }; ^ user.cpp: In function ‘void read_sir(std::ifstream&, int&, int&, std::vector<int>&)’: user.cpp:66:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0, cur = -1; i < pozitii.size(); ++i){ ^ user.cpp: In function ‘int main()’: user.cpp:99:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0, j = 1; j < sa.size(); ++i, ++j){ ^