Leetcode Problem 1323. Maximum 69 Number

1323. Maximum 69 Number

Leetcode Solutions

Convert Integer to String and Replace First Occurrence

Convert the integer num to a string num_str.
Find the index of the first occurrence of the character 6 in num_str.
If the character 6 is found, replace it with 9.
Convert the modified string back to an integer.
Return the resulting integer.

Check Remainder and Modify Specific Digit

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