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Home » Problems (hard) » Product of Digits

Product of Digits

Problem code: DIGITS

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All submissions for this problem are available.

The chef may be losing his mind. He has demanded you solve the following task: given an integer P, find the smallest positive integer whose product of digits, modulo 1000000007, is P. You can't imagine what this has to do with cooking, but you'd better do what he says or you won't get to sample his culinary delights.

Input:

Input will begin with a positive integer T<=15, the number of test cases. T lines follow, each containing an integer P between 0 and 1000000006, inclusive.

Output:

For each test case, print on a single line the smallest positive integer whose product of digits, modulo 1000000007, is P. It is guaranteed that such an integer exists with fewer than 700 digits.

Sample input:

4
16
486
220703118
0

Sample output:

28
699
5555555555555
10


Date:2010-09-25
Time limit:15s
Source limit:50000B
Languages:All except: TCL


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HELP

Program should read from standard input and write to standard output.

After you submit a solution you can see your results by clicking on the [My Submissions] tab on the problem page. Below are the possible results:

  • Accepted Your program ran successfully and gave a correct answer. If there is a score for the problem, this will be displayed in parenthesis next to the checkmark.
  • Time Limit Exceeded Your program was compiled successfully, but it didn't stop before time limit. Try optimizing your approach.
  • Wrong Answer Your program compiled and ran succesfully but the output did not match the expected output.
  • Runtime Error Your code compiled and ran but encountered an error. The most common reasons are using too much memory or dividing by zero. For the specific error codes see the help section.
  • Compilation Error Your code was unable to compile. When you see this icon, click on it for more information.

If you are still having problems, see a sample solution here.

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