Next Greater Numerically Balanced Number - Practice Coding | SlaveCode
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2048. Next Greater Numerically Balanced Number
Medium
30 Points
Hash Table
Math
Backtracking
Counting
Enumeration
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.
Examples
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
2048. Next Greater Numerically Balanced Number
Medium
30 Points
Hash Table
Math
Backtracking
Counting
Enumeration
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.
Examples
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.