Decide if the last array index is reachable: Blocked by zero

What this Python exercise asks you to practise

This scenario tests decide if the last array index is reachable. It belongs to the Interview Pattern Synthesis roadmap and uses the greedy · array · leetcode pattern pattern.

Greedy proof, bit manipulation, and mixed-pattern practice that combines earlier techniques.

Pattern relevance

This exercise strengthens greedy · array · leetcode pattern. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.