PYTHON PROBLEM 178 · Intermediate

Search a word in a character board

Determine that adjacent cells can spell the target without reusing a cell.

backtracking · gridbacktrackinggrid

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests search a word in a character board. It belongs to the Interview Pattern Synthesis roadmap and uses the backtracking · grid pattern.

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

COMPLETE WORKSPACE

Learn the plan, trace the logic and run the solution

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens backtracking · grid. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.