How should I practice Configurable Valid Brackets?

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Configurable Valid Brackets

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Problem statement

Each two-character string in pairs gives an opening and its matching closing character. Ignore text characters absent from all pairs. Return true when configured delimiters are correctly nested and completely closed.

Function

validConfiguredParentheses(text: String, pairs: String[]) → boolean

Examples

Example 1

text = "x<aAb>y"pairs = ["<>","aA","bB"]return = false

The closer b does not match the expected A.

Constraints

Every pair has length two.
Pair characters are globally distinct.
text.length <= 10^6.