题目描述：

LeetCode 1015. Numbers With Repeated Digits

Given a positive integer N, return the number of positive integers less than or equal to N that have at least 1 repeated digit.

Input: 20
Output: 1
Explanation: The only ...

题目描述：

LeetCode 950. Reveal Cards In Increasing Order

In a deck of cards, every card has a unique integer.  You can order the deck in any order you want.

Initially, all the cards start face down (unrevealed) in one deck ...

题目描述：

LeetCode 952. Largest Component Size by Common Factor

Given a non-empty array of unique positive integers A, consider the following graph:

最大值（整数数组）：

Arrays.stream(A).max().getAsInt()

int[] A = {6,7,8,2,1,3,4,5};
int maxVal = Arrays.stream(A).max().getAsInt();

最小值（整数数组）：

Arrays.stream(A).min().getAsInt()

int[] A = {6,7,8,2,1,3,4 ...

题目描述：

LeetCode 873. Length of Longest Fibonacci Subsequence

A sequence X_1, X_2, ..., X_n is fibonacci-like if:

• n >= 3
• X_i + X_{i+1} = X_{i+2} for all i + 2 <= n

Given a strictly increasing array A of positive ...