Given two integers x1 and x2, return true if the numbers written with no leading zeros contain the same digits. That is, the string representation of one number is a permutation of the string representation of the other.
For example
x1 = 1234;
x2 = 4321;
tf = same_digits(x1,x2)would output
tf = true
whereas
x1 = 1234;
x2 = 1244;
tf = same_digits(x1,x2)would output
tf = false
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May you add some testcases concerning that ~mod(63-45,9) = true, but 63 and 45 has definitely not the same digits.