A permutation is an ordered arrangement of objects. For example, 3124 is one possible permutation of the digits 1, 2, 3 and 4. If all of the permutations are listed numerically or alphabetically, we call it lexicographic order. The lexicographic permutations of 0, 1 and 2 are:
012 021 102 120 201 210
What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?
0, 1, 2, 3, 4, 5, 6, 7, 8,9的数字排列，第1,000,000个数字应该是多少？
012 021 102 120 201 210
What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?
0, 1, 2, 3, 4, 5, 6, 7, 8,9的数字排列，第1,000,000个数字应该是多少？
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