Math¶ Table of Contents¶ 1134. Armstrong Number (Easy) 👑 1180. Count Substrings with Only One Distinct Letter (Easy) 👑 1538. Guess the Majority in a Hidden Array (Medium) 👑 1183. Maximum Number of Ones (Hard) 👑 1134. Armstrong Number 👑¶ LeetCode | 力扣 Tags: Math 1180. Count Substrings with Only One Distinct Letter 👑¶ LeetCode | 力扣 Tags: Math, String 1538. Guess the Majority in a Hidden Array 👑¶ LeetCode | 力扣 Tags: Array, Math, Interactive 1183. Maximum Number of Ones 👑¶ LeetCode | 力扣 Tags: Math, Greedy, Sorting, Heap Priority Queue