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PAT(A) 1088. Rational Arithmetic (20)

For two rational numbers, your task is to implement the basic arithmetics, that is, to calculate their sum, difference,

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PAT(A) 1084. Broken Keyboard (20)

On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to th

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PAT(A) 1081. Rational Sum (20)

Given N rational numbers in the form “numerator/denominator”, you are supposed to calculate their sum. Input

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PAT(A) 1077. Kuchiguse (20)

The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be consi

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PAT(A) 1073. Scientific Notation (20)

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matc

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PAT(A) 1069. The Black Hole of Numbers (20)

For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing orde

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PAT(A) 1061. Dating (20)

Sherlock Holmes received a note with some strange strings: “Let’s date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s

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PAT(A) 1058. A+B in Hogwarts (20)

If you are a fan of Harry Potter, you would know the world of magic has its own currency system — as Hagrid explai

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PAT(A) 1054. The Dominant Color (20)

Behind the scenes in the computer’s memory, color is always talked about as a series of 24 bits of information for

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PAT(A) 1050. String Subtraction (20)

Given two strings S1 and S2, S = S1 – S2 is defined to be the remaining string after taking all the

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