JAVA：剑指

package 剑指offer_初级;

public class 剑指_Offer_04_二维数组中的查找 {
    class Solution {
        public boolean findNumberIn2DArray(int[][] matrix, int target) {
            int i = matrix.length - 1, j = 0;
            while(i >= 0 && j < matrix[0].length)
            {
                if(matrix[i][j] > target) i--;
                else if(matrix[i][j] < target) j++;
                else return true;
            }
            return false;
        }
    }
}