Monthly Archives: June 2021

2021: Problem 19

Solution: E

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2021: Problem 18

Solution: B

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2021: Problem 17

Solution: C

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2021: Problem 16

Solution: A

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2021: Problem 15

Solution: B

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2021: Problem 14

Solution: C

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2021: Problem 13

Solution: D

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2021: Problem 12

Solution: C

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2021: Problem 11

Solution: D

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2021: Problem 10

Solution: C

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