Recall the following segment of Java code for computing the set-difference of two given arrays (note that the lines have been numbered for the sake of reference): (1) int[] a, b; (2) (3) (4) int[] tempAns; (5) int count,j; (6) boolean found; (7) (8) // Input the arrays a and b here tempAns - new int[a.length]; (9) (10) count-0; (11) for (int i-e; i<-a.length-1; i++) { (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) } (24) (25) int[] ans = new int[count]; (26) for (int i-0; i<-count-1; count++) (27) found - false; j-0; while (j<-b.length-1 && !found) { if (a[i]--b[j]) found - true; j++; if (!found) { tempAns[count]-a[i]; count++; ans[i] - tempAns[i]; Suppose we want to modify the above code to compute the set union of the arrays a and b, i.e., the set of all elements that are in either a or b. Which of the following changes would accomplish that?

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Recall the following segment of Java code for computing the set-difference of
two given arrays (note that the lines have been numbered for the sake of
reference):
(1) int[] a, b;
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) count=0;
(11) for (int i=0; i<=a.length-1; i++) {
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23) }
(24)
(25) int[] ans = new int[count];
(26) for (int i=0; i<-count-1; count++)
(27)
// Input the arrays a and b here
int[] tempAns;
int count,j;
boolean found;
tempAns = new int[a.length];
found = false;
j-e;
while (j<-b.length-1 && !found) {
if (a[i]==b[j])
found = true;
j+;
}
if (!found) {
tempAns[count]=a[i];
count++;
}
ans[i] = tempAns[i];
Suppose we want to modify the above code to compute the set union of the
arrays a and b, i.e., the set of all elements that are in either a or b. Which of
the following changes would accomplish that?
Transcribed Image Text:Recall the following segment of Java code for computing the set-difference of two given arrays (note that the lines have been numbered for the sake of reference): (1) int[] a, b; (2) (3) (4) (5) (6) (7) (8) (9) (10) count=0; (11) for (int i=0; i<=a.length-1; i++) { (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) } (24) (25) int[] ans = new int[count]; (26) for (int i=0; i<-count-1; count++) (27) // Input the arrays a and b here int[] tempAns; int count,j; boolean found; tempAns = new int[a.length]; found = false; j-e; while (j<-b.length-1 && !found) { if (a[i]==b[j]) found = true; j+; } if (!found) { tempAns[count]=a[i]; count++; } ans[i] = tempAns[i]; Suppose we want to modify the above code to compute the set union of the arrays a and b, i.e., the set of all elements that are in either a or b. Which of the following changes would accomplish that?
A) Change line 8 to: tempAns = new int[a.length-1];
B) Make line 11 a while-loop and line 14 a for-loop
C) Change line 19 to: if (found)
D) all of the above would be necessary
E) none of the above
Transcribed Image Text:A) Change line 8 to: tempAns = new int[a.length-1]; B) Make line 11 a while-loop and line 14 a for-loop C) Change line 19 to: if (found) D) all of the above would be necessary E) none of the above
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