C++ Institute Exam CPP Topic 9 Question 87 Discussion

Actual exam question for C++ Institute's CPP exam

Question #: 87
Topic #: 9

[All CPP Questions]

What happens when you attempt to compile and run the following code?

#include

using namespace std;

int main(){

int myints[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };

vectorv(myints, myints+10);

set s1(v.begin(),v.end());

s1.insert(v.begin(),v.end());

s1.erase(s1.lower_bound(2),s1.upper_bound(7));

for(set::iterator i=s1.begin();i!= s1.end(); i++) {

cout<<*i<<" ";

}

return 0;

}

Aprogram outputs: 0 1 8 9

Bprogram outputs: 2 3 4 5 6 7

Cprogram outputs: 1 6 5 7

Dprogram outputs: 3 4 9 8 0

Show Suggested Answer

Suggested Answer: B

by Flo at Jun 21, 2024, 09:57 PM

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Nickole

3 days ago

The correct answer is B. The program first creates a vector with the given integers, then creates a set from the vector, inserts the vector elements into the set, and finally erases the elements in the range [2, 7]. The resulting set contains the elements 2, 3, 4, 5, 6, 7, which are then printed.

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