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What happens when you attempt to compile and run the following code?
#include
#include
#include
using namespace std;
class B { int val;
public:
B(int v):val(v){}
int getV() const {return val;} bool operator < (const B & v) const { return val ostream & operator <<(ostream & out, const B & v) { out< template ostream & out; Out(ostream & o): out(o){} void operator() (const T & val ) { out< int main() { B t1[]={3,2,4,1,5}; B t2[]={6,10,8,7,9}; vector v1(10); sort(t1, t1+5); sort(t2, t2+5); merge(t1,t1+5,t2,t2+5,v1.begin()); for_each(v1.begin(), v1.end(), Out(cout));cout< return 0; } Program outputs:
Suggested Answer: C
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31 comments · newest first
HU
Huey
11 months ago
Nah, I think it just prints the original arrays, not sorted.
HA
Harris
11 months ago
I thought the merge function needed a different setup.
PA
Paris
11 months ago
Wait, are we sure it doesn't throw any errors?
LE
Leonida
11 months ago
Definitely outputs sorted values, so option D is correct!
RA
Raina
11 months ago
The code sorts and merges two arrays of class B.
NI
Nickolas
12 months ago
I thought the merge function would combine the two sorted arrays, but I'm confused about how the vector v1 is being used. Is it initialized correctly?
JE
Jerrod
12 months ago
I practiced a similar question, and I feel like the arrays t1 and t2 are not initialized correctly for merge. Could it lead to a compilation error?
TA
Tamekia
12 months ago
I think the output should be sorted, so maybe option D is correct? But I can't recall if the merge function needs sorted input.
MA
Mauricio
1 year ago
I remember something about sorting and merging, but I'm not sure if the merge function will work with the way the arrays are defined.
VO
Von
1 year ago
I'm not sure about this one. The output options seem a bit tricky, and I'm not confident I can predict the exact result. I'll need to carefully work through the code step-by-step.
TA
Tamra
1 year ago
Hmm, I think I've got a handle on this. The sorted arrays are being merged into the vector v1, so the output should be the combined sorted elements.
CA
Carissa
1 year ago
I'm a bit confused by the custom class B and the overloaded operators. I'll need to make sure I understand how those are being used in the sorting and merging.
AL
Alica
1 year ago
Okay, let's see. The code is sorting two arrays and then merging them into a vector. I think the key is to understand how the merge operation works.
RE
Rebbeca
1 year ago
This looks like a tricky one. I'll need to carefully step through the code to understand what's happening.
NI
Nicolette
1 year ago
Cloud Storage could work, but I'm not sure if that's the best approach for ongoing analytics. Might be better to go with a more purpose-built data storage solution.
CA
Catarina
1 year ago
Wait, did they forget to include the 'greater' comparison function for the B class? This is going to be a tough one! *grabs popcorn*
KE
Kendra
1 year ago
This is easy! The answer is A) 8 10 5 1 4 6 2 7 9 3. The merge operation interleaves the elements of the two arrays, which is exactly what the output shows.
CR
Crissy
1 year ago
User 2
AL
Alpha
1 year ago
User 1
VE
Veta
1 year ago
User 2
AI
Aileen
1 year ago
User 1
ST
Stephaine
1 year ago
I'm going with C) compilation error. The code has a missing header file for the vector class, so it won't compile.
EL
Elly
1 year ago
I'm going with C) compilation error. The code has a missing header file for the vector class, so it won't compile.
SA
Samuel
1 year ago
No, I believe it's B) 1 2 3 4 5 6 7 8 9 10
LI
Lili
1 year ago
I think it's A) 8 10 5 1 4 6 2 7 9 3
NA
Nada
2 years ago
I'm not sure, but I think the correct answer is B) 1 2 3 4 5 6 7 8 9 10 because of the sorting and merging operations in the code.
LA
Launa
2 years ago
Hmm, the code seems to be merging two sorted arrays into a vector. I think the correct answer is B) 1 2 3 4 5 6 7 8 9 10, as the merge operation should preserve the sorted order of the input arrays.
CA
Carma
1 year ago
Yes, the merge operation should maintain the sorted order, so the output should be B) 1 2 3 4 5 6 7 8 9 10.
CA
Carma
1 year ago
I agree, the correct answer is B) 1 2 3 4 5 6 7 8 9 10.
YO
Yolando
2 years ago
I agree with Milly, because the code sorts the arrays t1 and t2 and then merges them into vector v1 in ascending order.
MI
Milly
2 years ago
I think the answer is B) 1 2 3 4 5 6 7 8 9 10.