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Zorluk: ZorCoding and Decoding

In a specific coding system, the word PARDON is written as MRWUZS. Following the exact same logical transformation rule, what is the code for the word POSTURE?

Cevap: HIXGVLS / hixgvls

Cevap

HIXGVLS
The code is determined by applying two transformation rules based on letter positions followed by a string reversal. Letters at odd positions (1st, 3rd, 5th, 7th) undergo a +3+3 forward alphabetical shift, while letters at even positions (2nd, 4th, 6th) are replaced by their reverse alphabetical partner (27−alphabetical position27 - \text{alphabetical position}). For the word POSTURE, this yields the intermediate string SLVGXIH. Reversing this intermediate string produces the final code HIXGVLS.

Adım Adım Çözüm

1
Analyze the position-based transformation rules for each letter of the original word.
Letters at odd positions (1st, 3rd, 5th...) are shifted forward by +3+3 positions in the English alphabetical series. Letters at even positions (2nd, 4th, 6th...) are replaced by their reverse alphabetical partner (where position index sum equals 2727).
For PARDON: P (1st, odd) →\rightarrow S; A (2nd, even) →\rightarrow Z; R (3rd, odd) →\rightarrow U; D (4th, even) →\rightarrow W; O (5th, odd) →\rightarrow R; N (6th, even) →\rightarrow M. The intermediate string is SZUWRM.
2
Identify the final structural modification step.
The intermediate letter sequence is reversed from right to left.
Reversing SZUWRM character-by-character gives MRWUZS.
3
Apply the odd/even position rules to the target word POSTURE.
P (1st, odd) +3→+3 \rightarrow S; O (2nd, even) 27−15=12→27-15=12 \rightarrow L; S (3rd, odd) +3→+3 \rightarrow V; T (4th, even) 27−20=7→27-20=7 \rightarrow G; U (5th, odd) +3→+3 \rightarrow X; R (6th, even) 27−18=9→27-18=9 \rightarrow I; E (7th, odd) +3→+3 \rightarrow H. Intermediate string is SLVGXIH.
Odd indices shift by +3+3, and even indices transform to reverse alphabetical complements.
4
Reverse the intermediate sequence to obtain the final coded answer.
HIXGVLS
Reversing SLVGXIH gives HIXGVLS.

Anahtar Kavram

Position-dependent shift combined with reverse alphabetical indexing and string reversal
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Konular

Coding and Decoding

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