NeetCode #570LC-130MediumGraphsNC 150NC 250
← Back to All Problems#570 · #130 · Surrounded Regions(被围绕的区域)
📌 Problem Statement & Constraints
Given an
m x n board of 'X' and 'O', capture all regions of 'O' that are completely surrounded by 'X' by turning them into 'X'. 'O' cells on the border are not captured. Constraints: 1 <= m, n <= 200.🔒
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