Monthly Archives: May 2021

2021: Problem 9

Solution: B

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2021: Problem 8

Solution: D

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2021: Problem 7

Solution: D

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2021: Problem 6

Solution: D

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2021: Problem 5

Solution: C

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2021: Problem 4

Solution: E

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2021: Problem 3

Solution: B

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2021: Problem 2

Solution: E

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