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Problems

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Difficulty
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7814
Two-digit number from three-digit
Easy
7815
Generous Vasya
Very easy
7816
Two trains
Easy
7817
Good number
Very easy
7818
Subway rides
Medium
7819
Maximum Coin Collection
Easy
7820
INTERESTING NUMBER
Hard
7821
TROLLEYBUS ROUTES
Medium
7822
MISSING NUMBER
Very easy
7823
CRANE
Very easy
7824
Without repetitions
Medium
7825
COMPUTER NETWORK
Medium
7826
Palindromic Paths
Hard
7828
Printer
Medium
7829
Sum of elements
Very easy
7830
The largest element of the array
Very easy
7831
Sum without maximum
Very easy
7832
Number of maximums
Very easy
7833
More than average
Very easy
7834
Two biggest
Very easy
7835
Seven primes
Medium
7836
Mansur defeats Alexander
Easy
7837
Maximal square
Hard
7838
One more problem with XOR
Easy
7839
Sum in sympathetic table
Easy
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