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] +…
leetcode.com 2026-05-25
🟡1871.jump-game-vii
🏷️ Tags
#string #dynamic_programming #prefix_sum #sliding_window
🟡1871.jump-game-vii
🏷️ Tags
#string #dynamic_programming #prefix_sum #sliding_window
Telegraph
jump-game-vii
You are given a 0-indexed binary string s and two integers minJump and maxJump. In the beginning, you are standing at index 0, which is equal to '0'. You can move from index i to index j if the following conditions are fulfilled:
leetcode.cn 2026-06-25
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-i
给你一个整数数组 nums 和一个整数 target。
leetcode.com 2026-06-25
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-i
You are given an integer array nums and an integer target. Return the number of subarrays of nums in which target is the majority element. The majority element of a subarray is the element that appears strictly more than half of the times in that subarray.…
leetcode.cn 2026-06-26
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-ii
给你一个整数数组 nums 和一个整数 target。
leetcode.com 2026-06-26
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-ii
You are given an integer array nums and an integer target. Return the number of subarrays of nums in which target is the majority element. The majority element of a subarray is the element that appears strictly more than half of the times in that subarray.…
leetcode.cn 2026-07-08
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
Telegraph
concatenate-non-zero-digits-and-multiply-by-sum-ii
给你一个长度为 m 的字符串 s,其中仅包含数字。另给你一个二维整数数组 queries,其中 queries[i] = [li, ri]。
leetcode.com 2026-07-08
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
Telegraph
concatenate-non-zero-digits-and-multiply-by-sum-ii
You are given a string s of length m consisting of digits. You are also given a 2D integer array queries, where queries[i] = [li, ri]. For each queries[i], extract the substring s[li..ri]. Then, perform the following:
leetcode.cn 2026-07-17
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
Telegraph
sorted-gcd-pair-queries
给你一个长度为 n 的整数数组 nums 和一个整数数组 queries 。 gcdPairs 表示数组 nums 中所有满足 0 <= i < j < n 的数对 (nums[i], nums[j]) 的 最大公约数 升序 排列构成的数组。 对于每个查询 queries[i] ,你需要找到 gcdPairs 中下标为 queries[i] 的元素。
leetcode.com 2026-07-17
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
Telegraph
sorted-gcd-pair-queries
You are given an integer array nums of length n and an integer array queries. Let gcdPairs denote an array obtained by calculating the GCD of all possible pairs (nums[i], nums[j]), where 0 <= i < j < n, and then sorting these values in ascending order. For…