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C++ Institute Exam CPP Topic 7 Question 89 Discussion

Actual exam question for C++ Institute's CPP exam
Question #: 89
Topic #: 7
[All CPP Questions]

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

#include

#include

#include

#include

#include

using namespace std;

int main(){

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

vector v(t, t+10);

map m;

for(vector::iterator i=v.begin(); i!=v.end(); i++) {

stringstream s; s<<*i<<*i; m.insert(pair(*i,s.str()));

}

for(map::iterator i=m.begin();i!= m.end(); i++) {

cout<<*i<<" ";

}

return 0;

}

Show Suggested Answer Hide Answer
Suggested Answer: E

by Felicitas at Jul 11, 2024, 06:34 AM

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Aretha
3 months ago
Haha, are they trying to trick us? This seems too straightforward to be the right answer.
upvoted 0 times
Coral
2 months ago
User 3: Yeah, it does seem too straightforward, but I'm going with B) as well
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Anastacia
2 months ago
User 2: I agree, it looks like the program will output 5 7
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Brandon
2 months ago
User 1: I think the answer is B) program outputs: 5 7
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Tom
4 months ago
Wait, what? I thought I had this figured out, but now I'm second-guessing myself. Better read the code again.
upvoted 0 times
Denny
2 months ago
User 3: The output will depend on the order of elements in the map. Let's analyze it further.
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Donte
3 months ago
User 2: It looks like the program is inserting each element twice into the map.
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Charlene
3 months ago
User 1: The code is inserting elements into a map based on the vector values.
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Ozell
4 months ago
Aha, I know this one! Gotta love those stringstreams and map insertions.
upvoted 0 times
Janine
2 months ago
User 4: I'm leaning towards the program outputting: 6 7
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Shawna
3 months ago
User 3: I believe the program will output: 5 7
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Pearly
3 months ago
User 2: I think the program will output: 6
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Elli
4 months ago
User 1: What do you think the program will output?
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Janet
4 months ago
I'm not sure, but I think the program will output 6 7.
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Celia
4 months ago
I believe the program will output 5 7.
upvoted 0 times
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Carmen
4 months ago
Hmm, this looks like a classic C++ question. I'll have to think through the logic carefully.
upvoted 0 times
Lawanda
3 months ago
The program outputs: 0 00 1 11 2 22 3 33 4 44 5 55 6 66 7 77 8 88 9 99
upvoted 0 times
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Lawanda
4 months ago
I think the program outputs: 6 6 7 7 2 2 1 1 4 4 5 5 6 6 7 7 9 9 8 8 0 0
upvoted 0 times
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Janet
4 months ago
I think the program will output 6.
upvoted 0 times
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