  Using a quark combination model with the equal-velocity combination
approximation, we study the production of hadrons with strangeness and charm
flavor quantum numbers in Pb+Pb collisions at $\sqrt{s_{NN}}=$5.02 TeV. We
present analytical expressions and numerical results for these hadrons'
transverse momentum spectra and yield ratios. Our numerical results agree well
with the experimental data available. The features of strange and charm hadron
production in the quark--gluon plasma at the early stage of heavy ion
collisions are also discussed.
