Class Solution
- java.lang.Object
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- g2701_2800.s2729_check_if_the_number_is_fascinating.Solution
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public class Solution extends Object
2729 - Check if The Number is Fascinating.Easy
You are given an integer
n
that consists of exactly3
digits.We call the number
n
fascinating if, after the following modification, the resulting number contains all the digits from1
to9
exactly once and does not contain any0
’s:- Concatenate
n
with the numbers2 * n
and3 * n
.
Return
true
ifn
is fascinating, orfalse
otherwise.Concatenating two numbers means joining them together. For example, the concatenation of
121
and371
is121371
.Example 1:
Input: n = 192
Output: true
Explanation: We concatenate the numbers n = 192 and 2 * n = 384 and 3 * n = 576. The resulting number is 192384576. This number contains all the digits from 1 to 9 exactly once.
Example 2:
Input: n = 100
Output: false
Explanation: We concatenate the numbers n = 100 and 2 * n = 200 and 3 * n = 300. The resulting number is 100200300. This number does not satisfy any of the conditions.
Constraints:
100 <= n <= 999
- Concatenate
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isFascinating(int n)
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