Fig. 9.

Schematic of the explosive percolation model. (A) For each step two vertices are chosen randomly and connected by an edge. (B) At each time step of the Product Rule (PR) process, two edges, $e_1$ and $e_2$, compete for addition. The selected edge is the one minimizing the product of the sizes of the components it merges. Here $e_1$ is accepted and $e_2$ is rejected. (C) Typical evolution of an ER, Bohman Frieze (BF), and PR process on a system of size $N=512\text{,}000$.

Figure from Ref. [116].