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Which of the following data types typically uses the least amount of memory in C?

easy📝 Conceptual Q1 of 15
C - Variables and Data Types
Which of the following data types typically uses the least amount of memory in C?
Achar
Bint
Cfloat
Ddouble
Step-by-Step Solution
Solution:

  1. Step 1: Understand typical sizes of basic types

    In C, a char usually takes 1 byte, int 4 bytes, float 4 bytes, and double 8 bytes.

  2. Step 2: Compare sizes to find smallest

    Since char is 1 byte, it uses the least memory among these types.

  3. Final Answer:

    char uses the least memory -> Option A

  4. Quick Check:

    Smallest data type = char [OK]
Quick Trick: char is always 1 byte in C [OK]
Common Mistakes:
  • Confusing char with int size
  • Assuming float is smaller than char

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