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C++ Institute CLA-11-03 Exam - Topic 2 Question 2 Discussion

Posted by Lizette on Oct 02, 2026 at 05:02 AM

What happens if you try to compile and run this program?

#include

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

int main, Main, mAIN = 1;

Main = main = mAIN += 1;

printf ("%d", MaIn) ;

return 0;

}

Choose the right answer:

Suggested Answer: C

The program is not a valid C program and cannot be compiled successfully. The reason is that the program uses the same name main for both a function and a variable, which is not allowed in C. The name main is a reserved keyword that denotes the entry point of the program, and it cannot be redefined or reused for any other purpose. Therefore, the compiler will report an error and the program will not run. Reference = C - main() function - Tutorialspoint, C Keywords - GeeksforGeeks, C Basic Syntax


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4 comments · newest first
NA
Naomi 3 days ago
I’m leaning towards a compilation error because of the way "Main" is used, but I could be wrong.
KA
Kasandra 8 days ago
This kind of question came up in practice, and I feel like it might compile but give an unexpected output due to the naming.
YU
Yuriko 13 days ago
I remember something about variable initialization, but I'm not sure if "mAIN += 1" would work as expected.
IV
Ivette 18 days ago
I think the variable names are case-sensitive, so "Main" and "main" are different. That might affect the output.
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