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C++ Institute CPA-21-02 Exam - Topic 3 Question 49 Discussion

What is the output of the program given below?#include using namespace std;int main (int argc, const char * argv[]){int i=10;{int i=0;cout
C) 055
D) None of these
A) 1010
B) 101010

C++ Institute CPA-21-02 Exam - Topic 3 Question 49 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam
Question #: 49
Topic #: 3
[All CPA-21-02 Questions]

What is the output of the program given below?

#include

using namespace std;

int main (int argc, const char * argv[])

{

int i=10;

{

int i=0;

cout<

}

{

i=5;

cout << i;

}

cout<

return 0;

}

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Suggested Answer: C

by Raylene at Jan 26, 2026, 07:21 PM

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Herman
1 day ago
I agree with Lou, but I feel unsure about the scope rules.
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Theola
7 days ago
No, it should print 0, then 5, then 10.
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Lou
12 days ago
I think it prints 5, then 5, then 5.
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Tiera
17 days ago
Confusing question!
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Isidra
22 days ago
The outer 'i' doesn't get printed until the end!
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Carlota
2 months ago
I thought it would print 10 at some point.
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Freeman
2 months ago
Wait, why does it print 0 first?
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Maddie
3 months ago
Totally agree, that's how scope works!
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Flo
3 months ago
The output will be 05.
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Jeff
3 months ago
Haha, this question is like a rite of passage for any C++ programmer. The output is a classic!
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Suzan
3 months ago
Wait, what? How can the output be 0 5 10? I'm so confused, someone please help!
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Aretha
3 months ago
Hmm, I thought the output would be 0 10 10. This C++ scoping thing is tricky.
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Nichelle
3 months ago
Ah, the good old scope resolution! The output is spot on.
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Audra
4 months ago
The inner block overrides the outer block's variable, so the output is 0 5 10.
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Hyun
4 months ago
The output is 0 5 10.
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Micah
4 months ago
I believe it prints 0, then 5, and finally 10. I just hope I got the scoping right!
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Marg
4 months ago
I’m a bit confused about the order of outputs. I practiced a question like this, but I can't recall the exact details.
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Torie
5 months ago
I remember something similar where inner scopes shadowed outer variables. So maybe it prints 0 first?
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Isabelle
5 months ago
I think the output will be 0, 5, and then 10, but I'm not completely sure about the scope rules.
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Jamie
5 months ago
Whoa, this is tricky. I better read through the code a few times and draw out the variable scopes to make sure I don't miss anything.
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Wava
5 months ago
I think I've got it! The first cout will print 0, the second will print 5, and the third will print 10. I'll double-check my work, but I'm feeling confident about this one.
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Ocie
6 months ago
I'm a bit confused by the nested blocks here. I'll need to make sure I understand how variable scope works in C++ to solve this one.
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Barrett
6 months ago
Okay, let me think this through step-by-step. There are three blocks of code, each with a different value for the variable 'i'. I'll need to pay attention to which 'i' is being used in each cout statement.
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Mozell
6 months ago
Hmm, this looks like a scope issue. I'll need to carefully trace the variable declarations and assignments to figure out the output.
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