DMITRII’s Substack

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# 26.09.2023 [316. Remove Duplicate Letters]
Lexicographical smallest subsequence without duplicates
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DMITRII SAMOILENKO
# 25.09.2023 [389. Find the Difference]
Strings difference by a single char
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DMITRII SAMOILENKO
# 24.09.2023 [799. Champagne Tower]
Positional flow value in a Pascal's Triangle
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DMITRII SAMOILENKO
# 23.09.2023 [1048. Longest String Chain]
Longest chain of words with signle character added
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DMITRII SAMOILENKO
# 22.09.2023 [392. Is Subsequence]
Is string a subsequence of another
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DMITRII SAMOILENKO
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# 21.09.2023 [4. Median of Two Sorted Arrays]
Median in two concatenated sorted arrays
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DMITRII SAMOILENKO
# 20.09.2023 [1658. Minimum Operations to Reduce X to Zero]
Min suffix-prefix to make an `x`
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DMITRII SAMOILENKO
# 19.09.2023 [287. Find the Duplicate Number]
Found duplicate in array, each value is in `1..<arr.size`
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DMITRII SAMOILENKO
# 18.09.2023 [1337. The K Weakest Rows in a Matrix]
`k` indices with smallest row sum in a binary matrix
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DMITRII SAMOILENKO
# 16.09.2023 [1631. Path With Minimum Effort]
Minimum absolute difference in path top-left to right-bottom
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DMITRII SAMOILENKO
# 15.09.2023 [1584. Min Cost to Connect All Points]
Min manhatten distance connected graph
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DMITRII SAMOILENKO
# 14.09.2023 [332. Reconstruct Itinerary]
Smallest lexical order path using all the tickets
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DMITRII SAMOILENKO
# 13.09.2023 [135. Candy]
Minimum candies count to satisfy condition: `ratings[i] < ratings[i-1]` must give more candies to `i-1`
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DMITRII SAMOILENKO
# 12.09.2023 [1647. Minimum Deletions to Make Character Frequencies Unique]
Minimum removes duplicate frequency chars from string
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DMITRII SAMOILENKO
DMITRII’s Substack
DMITRII’s Substack
I post a problem that I solve every single day
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