the process of encoding a message so that it can be read only by the sender and the intended recipient is called​, please please please please

Describe a data structures that supports the stack push and pop operations and a third operation findmin, which returns the smallest element in the data structure, all in o(1) worst-case time.

How are we able to create photographs differently than 100 years ago? explain your answer in relation to your photograph you selected.

Under the home tab, where can a user find options to change the bullet style of an outline? in the slides group in the font group in the paragraph group in the drawing group