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Range converter
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Pyramid codes
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Rainbow
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pond
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Range converter 2
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Phone number prefix
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Nice number
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Largest number of matches
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Maximum value that splits two numbers
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Scheduled
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Chia Cake
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ATM withdrawal
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Plant tree
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The subsets have the largest sum
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Find the number on the zig zag matrix
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Maximum length of the range
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Three factors
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Perfect number(hard version)
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Game addiction
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Plentiful numbers(hard version)
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Year value
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Prime ( hard version )
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Sieve element
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General estimate (hard version)
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Primes less than n
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Candy sale
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(ACM / ICPC 2020) Count the Palindromes
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Pour water
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TicTacToe
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Number of symmetries in the range
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Reflective Paint
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