What is the name for an algorithmic technique that incrementally builds candidates and abandons ones that fail to satisfy constraints?
Difficulty: Hard
About this MCQ
This Hard Algorithms question asks: What is the name for an algorithmic technique that incrementally builds candidates and abandons ones that fail to satisfy constraints? The correct choice is D. Backtracking. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Algorithms items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Algorithms so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
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- A. Dijkstra's algorithm
Why not A: “Dijkstra's algorithm” does not fit this question. The answer is Backtracking.
- B. Bubble sort
Why not B: “Bubble sort” does not fit this question. The answer is Backtracking.
- C. Depth-first search (DFS)
Why not C: “Depth-first search (DFS)” does not fit this question. The answer is Backtracking.
- D. Backtracking ✓
Correct answer
D. Backtracking
Explanation
Backtracking is the value that answers “What is the name for an algorithmic technique that incrementally builds candidates and abandons ones that fail to satisfy constraints” (option D). Option A (Dijkstra's algorithm) does not fit this question. Option B (Bubble sort) does not fit this question. Option C (Depth-first search (DFS)) does not fit this question. For this Algorithms question, the accepted answer is Backtracking.
Source: Algorithms Official Reference Guide
Tags: computer science, algorithms, problem solving, complexity analysis
Submitted by: MCQsHub Editorial
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