Which of the following is not a compilation error?
a. Neglecting to initialize a local variable in a method before it is used.
b. Placing a semicolon at the end of the first line of an if statement.
c. Omitting the left and right parenthesis for the condition of an if statement.
d. All are compilation errors.
B
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Answer the following statements true (T) or false (F)
1. The alias command is used to rename files. 2. The ignoreeof option prevents accidental log off when using the [Ctrl-d] key 3. The noclobber option removes clobber from directories 4. The grep command is used to look for a specific filename. 5. The ps command is used to obtain process status.
List five of the eight ways to minimize user action when keying in data.
What will be an ideal response?
If Kruskal’s algorithm is used for finding the minimum spanning tree of a weighted graph with n vertices and m edges and edge weights are already given in a sorted list, then, what will be the time complexity to compute the minimum cost spanning tree given that the union and find operations take amortized O(1)?
a. O(m) b. O(n) c. O(n logm) d. O(m logn)
Evaluate the expression and reduce the result to lowest term.
(1/7) — (1/8)