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Consider the following program in C language:
#include <stdio.h>
main()
{
int i;
int *pi = &i;
scanf(“%d”,pi);
printf(“%d”, i+5);
}
Which one of the following statements is TRUE?
  • a)
    Compilation fails.
  • b)
    Execution results in a run-time error.
  • c)
    On execution, the value printed is 5 more than the address of variable i.
  • d)
    On execution, the value printed is 5 more than the integer value entered.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following program in C language:#include <stdio.h>m...
Explanation:

Compilation:
- The program compiles successfully as there are no syntax errors.

Execution:
- The program declares an integer variable i and a pointer pi pointing to i.
- It then reads an integer input from the user and stores it in the memory location pointed to by pi, which is the address of i.
- Finally, it prints the value of i incremented by 5.

Output:
- When the program is executed and an integer value is entered by the user, the program will print the value entered by the user incremented by 5.
- This is because the program reads the integer input into the memory location of variable i through the pointer pi and then prints the value of i incremented by 5.
Therefore, the correct option is 'On execution, the value printed is 5 more than the integer value entered.' (Option D).
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Community Answer
Consider the following program in C language:#include <stdio.h>m...
It's very simple. It is because pi is a pointer variable pointing to i. So when we store a accepted value in pi, i+5 and pi+5 will give the same results.
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Consider the following program in C language:#include <stdio.h>main(){int i;int *pi = &i;scanf(“%d”,pi);printf(“%d”, i+5);}Which one of the following statements is TRUE?a)Compilation fails.b)Execution results in a run-time error.c)On execution, the value printed is 5 more than the address of variable i.d)On execution, the value printed is 5 more than the integer value entered.Correct answer is option 'D'. Can you explain this answer?
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