What are the chances of getting in UCI fall 2019?

@pleaseaccept123: Have you visited UCR and UCSC? Completely different environments and vibe along with opposite locations but academics are good at both schools.

UCR is inland so it can get hot and a smaller UC campus.
Advantage if you got a direct admit into CS.
Closer to cities where internships will be available.
ABET accreditation although not as important for CS vs. engineering
Housing probably cheaper.
Academics, see link below for comparison.

https://student.engr.ucr.edu/majors/2018%20ENCS%202.pdf

UCSC is near the coast, absolutely beautiful campus but slightly isolated.
You still have to declare the CS major after taking foundation classes.
San Jose and Silicon Valley nearby for internships.
Not ABET accredited
Housing issues and can be expensive.

Edited: Posted wrong link. https://registrar.ucsc.edu/catalog/archive/16-17/programs-courses/program-statements/cmps.html

Ultimately it is up to you where you would like to spend the next 4 years. Neither is a bad choice.