Calculate the number 1999
[7071] Calculate the number 1999 - NUMBERMANIA: Calculate the number 1999 using numbers [2, 3, 7, 6, 79, 322] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 11 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 1999

NUMBERMANIA: Calculate the number 1999 using numbers [2, 3, 7, 6, 79, 322] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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In 1983, U.S. student Fred Cohen presented to a security seminar the results of his test - the first documented virus, created as an experiment in computer security. Cohen created this first virus when studying for a PhD at the University of Southern California. Others had written about the potential for creating pernicious programs but he was the first to demonstrate a working example. In the paper, he defined a virus as "a program that can 'infect' other programs by modifying them to include a ... version of itself". Cohen added his virus to a graphics program called VD, written for a Vax mini-computer. The virus hid inside VD and used the permissions users had to look at other parts of the Vax computer to spread around the system.
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