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C Brain Teasers: Exercise Your Mind

Bits and Pieces

Explore the bits and pieces puzzle in C programming to improve your understanding of code logic, input handling, and output prediction. This lesson helps you practice interpreting C code and enhances your problem-solving skills with hands-on puzzle challenges.

We'll cover the following...

Puzzle code

Read carefully the code given below:

C
#include <stdio.h>
int main()
{
  int a, b;
  printf("Enter a positive integer: ");
  scanf("%d", &a);
  b = ~a + 1;
  printf("Result: %d\n", b);
  return(0);
}

Your task: Guess the output

Attempt the following test to assess your understanding.

Technical Quiz
1.

What will be the output if the user enters the positive integer 5?

A.

Result: -6

B.

Result: 6

C.

Result: -5

D.

Result: 4

1 / 1

Let's discuss the code and output together in this next lesson.