10

Maximum Time

Difficulty: EASY
Contributed By
Hardik Aggarwal
Avg. time to solve
15 min
Success Rate
90%

Problem Statement
Suggest Edit

You are given a string that represents time in the format hh:mm. Some of the digits are blank (represented by ‘?’). Fill in ‘?’ such that the time represented by this string is the maximum possible. Maximum time: 23:59, minimum time: 00:00. You can assume that the input string is always valid.

For Example :
If the given input string is 1?:?8.
We can replace the first ‘?’ with 9 and second with 5 to get the maximum time of 19:58.
Input Format :
 The first line contains a single integer ‘T’ denoting the number of test cases Then each test case follows.
 The first line of each test case contains a string in the format of ‘hh:mm’.
Output Format :
 For each test case print a string denoting the maximum possible time after replacing the ‘?’ marks with numbers..

Output for each test case will be printed in a separate line.
Note :

You are not required to print anything; it has already been taken care of. Just implement the function.

Constraints :
1 <= T <= 1000     
|S| = 5

Time limit: 1 sec
Sample Input 1 :
2
?4:5?
23:5?
Sample Output 1 :
14:59
23:59
Explanation Of Sample Output 1 :
For test case 1 :
We can only put 0 and 1 at the first position. so we choose 1 for maximum time. We put 9 at the end to maximize the minutes.

For test case 2 :
23:59 is the maximum time possible for any string.
Sample Input 2 :
1
12:22
Sample Output 2 :
 12:22
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