Project Engineer

You're given a string 'S' consisting of "{", "}", "(", ")", "[" and "]" .

Return true if the given string 'S' is balanced, else return false.

For example:

'S' = "{}()".

There is always an opening brace before a closing brace i.e. '{' before '}', '(' before ').
So the 'S' is Balanced.

You are given a string ‘S’ of length ‘N’. The string can be encoded using the following rules:

1) If the ‘i-th’ character is a vowel, change it to the next character in the alphabetical sequence. For example, the next character of ‘o’ is ‘p’.

2) If the ‘i-th’ character is a consonant, change it to the previous character in the alphabetical sequence. For example, the previous character of ‘h’ is ‘g’.

3) The next character of ‘z’ is ‘a’.

4) The previous character of ‘a’ is ‘z’.

Find the encoded string.

Example :

‘N’ = 4, ‘S’ = “code”

Character ‘c’ gets changed to ‘b’.
Character ‘o’ gets changed to ‘p’.
Character ‘d’ gets changed to ‘c’.
Character ‘e’ gets changed to ‘f’.

Encoded string = “bpcf”

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