Which countries in the world are divided into left wing and right wing?

All countries. Left and right are relative. The left and right are not necessarily parties, and civil organizations are equally divided. Take China as an example. "Sovietism" and "Mao Daqi" are left-wing, while Wheels and other parliamentary Democrats are right-wing.

The most typical countries with great polarization between left and right are Nordic democratic socialist countries and Russia and Japan. In the wild, Russia's strength is very strong.