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प्रश्न
Exchange the contents: Given two glasses marked A and B. Glass A is full of apple drink and glass B is full of grape drink. Write the specification for exchanging the contents of glasses A and B, and write a sequence of assignments to satisfy the specification.
उत्तर
The sequence of assignments to satisfy the specification:
exchange(A, B)
–inputs : A, B are real and > 0
–outputs: A, B are real and > 0
State representation
T = A
A: = B
B: = T
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i := 0
while i ≠ 5
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