英语翻译Let S = s1 s2...s2n be a well-formed string of parentheses.S can be encoded in two different ways:q By an integer sequence P = p1 p2...pn where pi is the number of left parentheses before the ith right parenthesis in S (P-sequence).q By an integer sequence W = w1 w2...wn where for each right parenthesis,say a in S,we associate an integer which is the number of right parentheses counting from the matched left parenthesis of a up to a.(W-sequence).F

英语翻译
Let S = s1 s2...s2n be a well-formed string of parentheses.S can be encoded in two different ways:
q By an integer sequence P = p1 p2...pn where pi is the number of left parentheses before the ith right parenthesis in S (P-sequence).
q By an integer sequence W = w1 w2...wn where for each right parenthesis,say a in S,we associate an integer which is the number of right parentheses counting from the matched left parenthesis of a up to a.(W-sequence).
Following is an example of the above encodings:
S (((()()())))
P-sequence 4 5 6666
W-sequence 1 1 1456
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