AMCAT Computer Programming

Question 1

What is the output of the following C code? int x = 5; printf('%d', x++);

Accepted Answer

5

Answer

x++ is post-increment, so the current value 5 is printed before incrementing.

Question 2

Which data type in C is used to store a single character?

Accepted Answer

char

Answer

The 'char' data type in C stores a single character using 1 byte of memory.

Question 3

What does the '==' operator do in most programming languages?

Accepted Answer

Compares two values for equality

Answer

'==' is the equality comparison operator, returning true if both operands have the same value.

Question 4

What is the time complexity of accessing an element in an array by index?

Accepted Answer

O(1)

Answer

Array elements are stored in contiguous memory, so index-based access is constant time O(1).

Question 5

Which of the following is NOT a loop construct in C?

Accepted Answer

repeat-until

Answer

C does not have a 'repeat-until' loop; it uses 'for,' 'while,' and 'do-while' loops.

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