Given two numbers a and b, determine if the product ab is a permutation of the digits of a. For example, this is always true for a=0. Less trivially, 125874*2=251748.
If the product, ab, has more digits than a, append zeros to the front of a so they have the same number of digits. Thus, for example, 015*7=105 is another example.
This problem was inspired by seeing a student simplify 163/326 to 1/2 by cancelling out the digits in common.
Return the largest number that is adjacent to a zero
2957 Solvers
1172 Solvers
Least common multiple of many numbers
156 Solvers
Sum of diagonal of a square matrix
1105 Solvers
125 Solvers
Solution 1732920
Any suggestions for improving the test suite would be appreciated!
Adding test cases a=105 b=30 and a=111 b=3 should weed out a couple of less-than-general solutions.