Pro.ID10073 TitleCommon permutation Title链接http://10.20.2.8/oj/exercise/problem?problem_id=10073 AC0 Submit4 Ratio0.00% 时间&空间限制描述Given two strings of lowercase letters, a and b, print the longest string x of lowercase letters such that there is a permutation of x that is a subsequence of a and there is a permutation of x that is a subsequence of b. 输入Input consists of pairs of lines. The first line of a pair contains a and the second contains b. Each string is on a separate line and consists of at most 1,000 lowercase letters. 输出Description Given two strings of lowercase letters, a and b, print the longest string x of lowercase letters such that there is a permutation of x that is a subsequence of a and there is a permutation of x that is a subsequence of b. Input Input consists of pairs of lines. The first line of a pair contains a and the second contains b. Each string is on a separate line and consists of at most 1,000 lowercase letters. Output For each subsequent pair of input lines, output a line containing x. If several x satisfy the criteria above, choose the first one in alphabetical order. Sample Input pretty
women
walking
down
the
streetSample Output e
nw
etSource 样例输入pretty
women
walking
down
the
street样例输出e
nw
et作者 |
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