import java.util.*; public class Solution { int[][] flag; int ans = 0, cols, rows, threshold; public int movingCount(int threshold, int rows, int cols) { flag = new int[rows][cols]; this.cols = cols; this.rows = rows; this.threshold = threshold; dfs(0, 0, 0, 0); return ans; } void dfs(int a, int b,i...