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Don't miss a day to solve the problem My leetcode graph - https://leetcode.com/SamoylenkoDmitry/
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频道帖子
# 28.10.2026
3882. Minimum XOR Path in a Grid
medium
Smallest xor-path
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/bRTN6rxtDtQ
| 2 |  # 27.10.2026
3963. Create Grid With Exactly One Path
easy
Any maze with single path
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/hkMvKDkHEGc | 47 |
| 3 |  # 26.10.2026
3619. Count Islands With Total Value Divisible by K
medium
Count islands sum %k in grid
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/RktIByCe70A | 57 |
| 4 |  # 25.10.2026
1254. Number of Closed Islands
medium
Count 0-islands surrounded by 1
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/YAVvQS1uasI | 60 |
| 5 |  # 24.10.2026
2409. Count Days Spent Together
easy
Days range intersection
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/vDeyO8Bamc4 | 75 |
| 6 |  # 23.10.2026
3644. Maximum K to Sort a Permutation
medium
Max K to sort by swapping a&b=k
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/nv5kyYQd-N8 | 80 |
| 7 |  # 22.10.2026
3942. Minimum Operations to Sort a Permutation
medium
Ops to sort by shifting left and reversing
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/cgvtv-pbEBc | 86 |
| 8 |  # 21.10.2026
3863. Minimum Operations to Sort a String
medium
Ops to sort by sorting substrings
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/i3BMQ98Yhac | 95 |
| 9 |  # 20.10.2026
3886. Sum of Sortable Integers
hard
Sum of chunks lengths that could split then cycle to sort array
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/NvQ_8-uHuYo | 105 |
| 10 |  # 19.10.2026
2089. Find Target Indices After Sorting Array
easy
Positions of target in sorted order
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/NNkNSRNEyXg | 110 |
| 11 |  # 18.10.2026
1569. Number of Ways to Reorder Array to Get Same BST
hard
Ways to permute keeping the same BST
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/fm36K2FIETk | 126 |
| 12 |  # 17.10.2026
3551. Minimum Swaps to Sort by Digit Sum
medium
Minimum swaps to sort by digits sum & num
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/FQjNg1hn-P8 | 125 |
| 13 |  # 16.10.2026
2916. Subarrays Distinct Element Sum of Squares II
hard
Sum of squares of uniq numbers counts in all subarrays
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/Bozx3GCcXTg | 121 |
| 14 |  # 15.10.2026
2913. Subarrays Distinct Element Sum of Squares I
easy
Sum of squares of uniq numbers counts in all subarrays
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/nu5lsK8c3ZM | 137 |
| 15 |  # 14.10.2026
3723. Maximize Sum of Squares of Digits
medium
String of max n digits summing up to s
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/CH9ZVRp0js4 | 133 |
| 16 |  # 12.10.2026
2897. Apply Operations on Array to Maximize Sum of Squares
hard
Max sum of squares after any pairwise a=a|b, b=a&b
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/N_KQo3nXA2Y | 140 |
| 17 |  # 11.10.2026
2778. Sum of Squares of Special Elements
easy
Sum of squares at positions divisible by size
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/X3WV6WoTwcc | 146 |
| 18 |  # 10.10.2026
2333. Minimum Sum of Squared Difference
medium
Min sum of squared difs after adjusting each array by k
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/HzF_Y4lO2mk | 149 |
| 19 |  # 09.10.2026
1541. Minimum Insertions to Balance a Parentheses String
medium
Add braces to balance ( with ))
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/qNsY630fi3U | 138 |
| 20 |  # 08.10.2026
1021. Remove Outermost Parentheses
easy
Remove outer braces
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/o5f0pdEFtgQ | 136 |
