2790. Maximum Number of Groups With Increasing Length
Description
You are given a 0-indexed array usageLimits
of length n
.
Your task is to create groups using numbers from 0
to n - 1
, ensuring that each number, i
, is used no more than usageLimits[i]
times in total across all groups. You must also satisfy the following conditions:
- Each group must consist of distinct numbers, meaning that no duplicate numbers are allowed within a single group.
- Each group (except the first one) must have a length strictly greater than the previous group.
Return an integer denoting the maximum number of groups you can create while satisfying these conditions.
Example 1:
Input: usageLimits = [1,2,5] Output: 3 Explanation: In this example, we can use 0 at most once, 1 at most twice, and 2 at most five times. One way of creating the maximum number of groups while satisfying the conditions is: Group 1 contains the number [2]. Group 2 contains the numbers [1,2]. Group 3 contains the numbers [0,1,2]. It can be shown that the maximum number of groups is 3. So, the output is 3.
Example 2:
Input: usageLimits = [2,1,2] Output: 2 Explanation: In this example, we can use 0 at most twice, 1 at most once, and 2 at most twice. One way of creating the maximum number of groups while satisfying the conditions is: Group 1 contains the number [0]. Group 2 contains the numbers [1,2]. It can be shown that the maximum number of groups is 2. So, the output is 2.
Example 3:
Input: usageLimits = [1,1] Output: 1 Explanation: In this example, we can use both 0 and 1 at most once. One way of creating the maximum number of groups while satisfying the conditions is: Group 1 contains the number [0]. It can be shown that the maximum number of groups is 1. So, the output is 1.
Constraints:
1 <= usageLimits.length <= 105
1 <= usageLimits[i] <= 109
Solutions
Solution 1
1 2 3 4 5 6 7 8 9 10 11 |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
|
1 2 3 4 5 6 7 8 9 10 11 12 |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 |
|
Solution 2
1 2 3 4 5 6 7 8 9 10 |
|