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Question


What will be the output of the program?


#include<stdio.h>
int main()
{
const int i=0;
printf("%d\n", i++);
return 0;
}
Options:
A .  10
B .  11
C .  No output
D .  Error: ++needs a value
Answer: Option D

This program will show an error "Cannot modify a const object".

Step 1: const int i=0; The constant variable 'i' is declared as an integer and initialized with value 

of '0'(zero).

Step 2: printf("%dn", i++); Here the variable 'i' is increemented by 1(one). This will create an error 

"Cannot modify a const object".

Because, we cannot modify a const variable.



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