Class Solution
java.lang.Object
g1301_1400.s1323_maximum_69_number.Solution
public class Solution
extends java.lang.Object
1323 - Maximum 69 Number.
Easy
You are given a positive integer num
consisting only of digits 6
and 9
.
Return the maximum number you can get by changing at most one digit (6
becomes 9
, and 9
becomes 6
).
Example 1:
Input: num = 9669
Output: 9969
Explanation:
Changing the first digit results in 6669.
Changing the second digit results in 9969.
Changing the third digit results in 9699.
Changing the fourth digit results in 9666.
The maximum number is 9969.
Example 2:
Input: num = 9996
Output: 9999
Explanation: Changing the last digit 6 to 9 results in the maximum number.
Example 3:
Input: num = 9999
Output: 9999
Explanation: It is better not to apply any change.
Constraints:
1 <= num <= 104
num
consists of only6
and9
digits.
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Constructor Summary
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Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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Solution
public Solution()
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Method Details
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maximum69Number
public int maximum69Number(int num)
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