What is symmetric and asymmetric dsl?

Given the following code: if (n == 2) { k -= 2; } else if (n == 3) { k -= 3; } can be rewritten as: if (< condition > ) { < assignment statement > ; } assume that evaluating < condition > does not change the values stored in n and k. which of the following could be used as < assignment statement > ? k -= n; k -= 1; k -= 2; k += n; k = n - k;

Explain briefly why you cannot expect to find a previous version of every file with which you work.

Selective is defined as paying attention to messages that are consistent with one’s attitudes and beliefs and ignoring messages that are inconsistent.