A stack is an abstract data type that stores an ordered collection of items which follow first in last out (FILO) or last in first out (LIFO) principle; with two principal operations: push, which adds an item to the stack, and pop, which removes the most recently added item.
Dijkstra's algorithm is an algorithm for finding the shortest paths between nodes in a graph, which may represent, for example, road networks. It was conceived by computer scientist Edsger W. Dijkstra in 1956 and published three years later. The algorithm exists in many variants.
First, renew letsencrypt ssl certificate. And then copy the new SSL certificate files to zimbra's folder. Follow by replacing the existing commercial key with private key. Finally, deploy and then restart zimbra service.
A heap is a tree-based data structure which satisfies the heap property, if the parent node is greater than the child node is called max-heap or if the parent node is less than the child node is called min-heap.
Koken is a content management system (CMS) and web site publishing for photographers. Your images are your most important asset. Koken treats them with the attention they deserve by including a full-featured management interface that looks and feels like a desktop application.
Shrinking logical volume (LVM) must go through several steps. Unlike standard partition (ext4 file system). In order to shrink root logical volume, we must boot into a live CD like SystemRescueCD. And then shrink the volume from there.