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easy Solve on LeetCodeLast edited: August 2, 2025

Problem
Examples
Example 1
Example 2
Example 3
Solution
Method 1 – Brute Force (Digit Sum Check)
Intuition
Approach
Code
Complexity

Related Tags

array backtracking binary-indexed-tree binary-search binary-tree bit-manipulation bitmask breadth-first-search combinatorics counting counting-sort database depth-first-search design divide-and-conquer doubly-linked-list dynamic-programming enumeration graph greedy hash-function hash-table heap-priority-queue leetcode line-sweep linked-list math matrix memoization monotonic-queue monotonic-stack number-theory ordered-set prefix-sum queue recursion rolling-hash segment-tree shortest-path simulation sliding-window sorting stack string string-matching topological-sort tree trie two-pointers union-find

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