leetcode.com 2026-03-25
🟡3546.equal-sum-grid-partition-i
🏷️ Tags
#array #enumeration #matrix #prefix_sum
🟡3546.equal-sum-grid-partition-i
🏷️ Tags
#array #enumeration #matrix #prefix_sum
Telegraph
equal-sum-grid-partition-i
You are given an m x n matrix grid of positive integers. Your task is to determine if it is possible to make either one horizontal or one vertical cut on the grid such that:
leetcode.cn 2026-03-26
🔴3548.equal-sum-grid-partition-ii
🏷️ Tags
#array #hash_table #enumeration #matrix #prefix_sum
🔴3548.equal-sum-grid-partition-ii
🏷️ Tags
#array #hash_table #enumeration #matrix #prefix_sum
Telegraph
equal-sum-grid-partition-ii
给你一个由正整数组成的 m x n 矩阵 grid。你的任务是判断是否可以通过 一条水平或一条垂直分割线 将矩阵分割成两部分,使得:
leetcode.com 2026-03-26
🔴3548.equal-sum-grid-partition-ii
🏷️ Tags
#array #hash_table #enumeration #matrix #prefix_sum
🔴3548.equal-sum-grid-partition-ii
🏷️ Tags
#array #hash_table #enumeration #matrix #prefix_sum
Telegraph
equal-sum-grid-partition-ii
You are given an m x n matrix grid of positive integers. Your task is to determine if it is possible to make either one horizontal or one vertical cut on the grid such that:
leetcode.cn 2026-04-29
🔴3225.maximum-score-from-grid-operations
🏷️ Tags
#array #dynamic_programming #matrix #prefix_sum
🔴3225.maximum-score-from-grid-operations
🏷️ Tags
#array #dynamic_programming #matrix #prefix_sum
Telegraph
maximum-score-from-grid-operations
给你一个大小为 n x n 的二维矩阵 grid ,一开始所有格子都是白色的。一次操作中,你可以选择任意下标为 (i, j) 的格子,并将第 j 列中从最上面到第 i 行所有格子改成黑色。 如果格子 (i, j) 为白色,且左边或者右边的格子至少一个格子为黑色,那么我们将 grid[i][j] 加到最后网格图的总分中去。 请你返回执行任意次操作以后,最终网格图的 最大 总分数。 示例 1: 输入:grid = [[0,0,0,0,0],[0,0,3,0,0],[0,1,0,0,0],[5,0,0,3…
leetcode.com 2026-04-29
🔴3225.maximum-score-from-grid-operations
🏷️ Tags
#array #dynamic_programming #matrix #prefix_sum
🔴3225.maximum-score-from-grid-operations
🏷️ Tags
#array #dynamic_programming #matrix #prefix_sum
Telegraph
maximum-score-from-grid-operations
You are given a 2D matrix grid of size n x n. Initially, all cells of the grid are colored white. In one operation, you can select any cell of indices (i, j), and color black all the cells of the jth column starting from the top row down to the ith row. The…
leetcode.cn 2026-05-13
🟡1674.minimum-moves-to-make-array-complementary
🏷️ Tags
#array #hash_table #prefix_sum
🟡1674.minimum-moves-to-make-array-complementary
🏷️ Tags
#array #hash_table #prefix_sum
Telegraph
minimum-moves-to-make-array-complementary
给你一个长度为 偶数 n 的整数数组 nums 和一个整数 limit 。每一次操作,你可以将 nums 中的任何整数替换为 1 到 limit 之间的另一个整数。 如果对于所有下标 i(下标从 0 开始),nums[i] + nums[n - 1 - i] 都等于同一个数,则数组 nums 是 互补的 。例如,数组 [1,2,3,4] 是互补的,因为对于所有下标 i ,nums[i] + nums[n - 1 - i] = 5 。 返回使数组 互补 的 最少 操作次数。 示例 1: 输入:nums…
leetcode.com 2026-05-13
🟡1674.minimum-moves-to-make-array-complementary
🏷️ Tags
#array #hash_table #prefix_sum
🟡1674.minimum-moves-to-make-array-complementary
🏷️ Tags
#array #hash_table #prefix_sum
Telegraph
minimum-moves-to-make-array-complementary
You are given an integer array nums of even length n and an integer limit. In one move, you can replace any integer from nums with another integer between 1 and limit, inclusive. The array nums is complementary if for all indices i (0-indexed), nums[i] +…