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动态规划 363. 矩形区域不超过 K 的最大数值和 hard class Solution { public int maxSumSubmatrix(int[][] matrix, int k) { int m = matrix.length; int n = matrix[0].length; 阅读全文
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27. 移除元素 class Solution { public int removeElement(int[] nums, int val) { int len = nums.length; for(int i = len - 1; i >= 0; i--){ if(nums[i] == val) 阅读全文
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双指针 392. 判断子序列 class Solution { public boolean isSubsequence(String s, String t) { int i = 0; int j = 0; int n = s.length(); int m = t.length(); while 阅读全文