Stack (Array and Linked implementation of Stack): Operations on Stack (PUSH and POP) and its Implementation in C++, Converting expressions from INFIX to POSTFIX notation and evaluation of Postfix ...

Celo becomes Ethereum L2 with Optimism rollup implementation Celo, originally launched as a layer-1 blockchain in 2020, has now transitioned to an Ethereum layer-2 protocol using optimistic rollups.