Answer:
the first option is obviously the correct answer
You'll need a helper variable for this, so depending on your programming language, the solution becomes:
int helper;
helper = arr[i];
arr[i] = arr[j];
arr[j] = helper;
Answer:
What is the following?
Explanation:
There is no following listed, so I can't help you.
Answer:
Yo creo que él internet a mejorado nuestra vida pero también nos a embobado porque lo que hacemos mas es buscar cosas que no aportan a tu vida y no cosas que nos ayuden en la vida.