The pseudocode below contains the ← symbol. What type of symbol is the ← symbol?

Question

BlackTom AI · Accepted Answer

The arrow ← in pseudocode is the assignment operator: it means “store the value on the right into the variable on the left.”

Relevant concepts:
- Assignment assigns a value to a variable.
- In pseudocode the left-pointing arrow (←) is commonly used to show value flow into a variable (some languages use = or := instead).
- Equality/relational operators (equals, not equals, less than) are different and used for comparisons, not for storing values.

Step-by-step reasoning using the shown pseudocode:
1. A ← 5 : execute assignment — put the value 5 into variable A. After this step A = 5.
2. B ← 5 : assign 5 to B. After this step B = 5.
3. C ← A * B : evaluate the expression A * B (use the current values of A and B). Intermediate calculation: A * B = 5 * 5 = 25. Then assign that result to C, so C = 25.
4. Print B : output the current value stored in B, which is 5.

Why assignment is correct:
- Each statement with ← changes the contents of a variable (it assigns a value). The arrow shows direction of assignment (value → variable). The example’s behavior (A and B becoming 5, C becoming 25) is exactly what an assignment operator does.

Why the other choices are incorrect:
- b. Equals: “equals” (a relational operator) tests if two values are the same; it does not store a value. In pseudocode comparisons use = or == in conditions, not ←.
- c. Not equals: represented by ≠ or != — it’s a comparison operator meaning “different,” not an assignment.
- d. Less than: the symbol < denotes ordering (less-than); ← is an arrow, not the less-than symbol.

Conclusion: The correct answer is a. Assignment.

The pseudocode below contains the ← symbol. What type of symbol is the ← symbol?单项选择题

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