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g2001_2100.s2048_next_greater_numerically_balanced_number.readme.md Maven / Gradle / Ivy

2048\. Next Greater Numerically Balanced Number

Medium

An integer `x` is **numerically balanced** if for every digit `d` in the number `x`, there are **exactly** `d` occurrences of that digit in `x`.

Given an integer `n`, return _the **smallest numerically balanced** number **strictly greater** than_ `n`_._

**Example 1:**

**Input:** n = 1

**Output:** 22

**Explanation:** 

22 is numerically balanced since: 

- The digit 2 occurs 2 times. 
  
It is also the smallest numerically balanced number strictly greater than 1.

**Example 2:**

**Input:** n = 1000

**Output:** 1333

**Explanation:** 

1333 is numerically balanced since:

- The digit 1 occurs 1 time. 

- The digit 3 occurs 3 times. 
  
It is also the smallest numerically balanced number strictly greater than 1000. Note that 1022 cannot be the answer because 0 appeared more than 0 times.

**Example 3:**

**Input:** n = 3000

**Output:** 3133

**Explanation:** 

3133 is numerically balanced since: 

- The digit 1 occurs 1 time. 

- The digit 3 occurs 3 times. 
  
It is also the smallest numerically balanced number strictly greater than 3000.

**Constraints:**

*   0 <= n <= 106