Add problem description at WhatBaseIsThis

UVa/WhatBaseIsThis.java

@@ -1,3 +1,51 @@
+/**
+ * In positional notation we know the position of a digit indicates the weight of that digit toward the
+ * value of a number. For example, in the base 10 number 362 we know that 2 has the weight 100
+ * , 6
+ * has the weight 101
+ * , and 3 has the weight 102
+ * , yielding the value 3 × 102 + 6 × 101 + 2 × 100
+ * , or just
+ * 300 + 60 + 2. The same mechanism is used for numbers expressed in other bases. While most people
+ * assume the numbers they encounter everyday are expressed using base 10, we know that other bases
+ * are possible. In particular, the number 362 in base 9 or base 14 represents a totally different value than
+ * 362 in base 10.
+ * For this problem your program will presented with a sequence of pairs of integers. Let’s call the
+ * members of a pair X and Y . What your program is to do is determine the smallest base for X and the
+ * smallest base for Y (likely different from that for X) so that X and Y represent the same value.
+ * Consider, for example, the integers 12 and 5. Certainly these are not equal if base 10 is used for
+ * each. But suppose 12 was a base 3 number and 5 was a base 6 number? 12 base 3 = 1 × 3
+ * 1 + 2 × 3
+ * 0
+ * ,
+ * or 5 base 10, and certainly 5 in any base is equal to 5 base 10. So 12 and 5 can be equal, if you select
+ * the right bases for each of them!
+ * Input
+ * On each line of the input data there will be a pair of integers, X and Y , separated by one or more blanks;
+ * leading and trailing blanks may also appear on each line, are are to be ignored. The bases associated
+ * with X and Y will be between 1 and 36 (inclusive), and as noted above, need not be the same for X and
+ * Y . In representing these numbers the digits 0 through 9 have their usual decimal interpretations. The
+ * uppercase alphabetic characters A through Z represent digits with values 10 through 35, respectively.
+ * Output
+ * For each pair of integers in the input display a message similar to those shown in the examples shown
+ * below. Of course if the two integers cannot be equal regardless of the assumed base for each, then print
+ * an appropriate message; a suitable illustration is given in the examples.
+ * Sample Input
+ * 12 5
+ * 10 A
+ * 12 34
+ * 123 456
+ * 1 2
+ * 10 2
+ * Sample Output
+ * 12 (base 3) = 5 (base 6)
+ * 10 (base 10) = A (base 11)
+ * 12 (base 17) = 34 (base 5)
+ * 123 is not equal to 456 in any base 2..36
+ * 1 is not equal to 2 in any base 2..36
+ * 10 (base 2) = 2 (base 3)
+ */
+
 
 //https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=&problem=279