P1634 Infectious Disease Among Animals

Inspired by mxj.

Animals have contracted an infectious disease. Each animal infects $x$ animals per round. After $n$ rounds of transmission, how many animals have been infected?

Two non-negative integers $x$ and $n$.

A single integer, the number of infected animals.

It is guaranteed that $x,n$ and the answer are within the range of a $64$-bit unsigned integer. Translated by ChatGPT 5