Leetcode_daily
Open in Telegram
Don't miss a day to solve the problem My leetcode graph - https://leetcode.com/SamoylenkoDmitry/
Show more1 658
Subscribers
-224 hours
-127 days
-2430 days
Data loading in progress...
Similar Channels
Tags Cloud
Incoming and Outgoing Mentions
---
---
---
---
---
---
Attracting Subscribers
October '26Oct '26
October '26
+3
in 0 channels
September '26
+29
in 0 channels
Get PRO
August '26
+48
in 0 channels
Get PRO
July '26
+78
in 0 channels
Get PRO
June '26
+21
in 0 channels
Get PRO
May '26
+16
in 0 channels
Get PRO
April '26
+19
in 0 channels
Get PRO
March '26
+19
in 0 channels
Get PRO
February '26
+25
in 0 channels
Get PRO
January '26
+35
in 0 channels
Get PRO
December '25
+22
in 0 channels
Get PRO
November '25
+35
in 0 channels
Get PRO
October '25
+31
in 0 channels
Get PRO
September '25
+56
in 0 channels
Get PRO
August '25
+56
in 0 channels
Get PRO
July '25
+62
in 0 channels
Get PRO
June '25
+39
in 0 channels
Get PRO
May '25
+53
in 0 channels
Get PRO
April '25
+54
in 0 channels
Get PRO
March '25
+75
in 0 channels
Get PRO
February '25
+43
in 0 channels
Get PRO
January '25
+90
in 0 channels
Get PRO
December '24
+77
in 0 channels
Get PRO
November '24
+146
in 0 channels
Get PRO
October '24
+91
in 0 channels
Get PRO
September '24
+53
in 0 channels
Get PRO
August '24
+148
in 0 channels
Get PRO
July '24
+89
in 0 channels
Get PRO
June '24
+60
in 0 channels
Get PRO
May '24
+70
in 0 channels
Get PRO
April '24
+68
in 0 channels
Get PRO
March '24
+60
in 0 channels
Get PRO
February '24
+140
in 0 channels
Get PRO
January '24
+312
in 0 channels
Get PRO
December '23
+263
in 0 channels
| Date | Subscriber Growth | Mentions | Channels | |
| 07 October | 0 | |||
| 06 October | +1 | |||
| 05 October | +1 | |||
| 04 October | +1 | |||
| 03 October | 0 | |||
| 02 October | 0 | |||
| 01 October | 0 |
Channel Posts
# 07.10.2026
301. Remove Invalid Parentheses
hard
Min removal to make balanced strings
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/yPf_3x7Hj5U
| 2 |  # 06.10.2026
921. Minimum Add to Make Parentheses Valid
medium
Min insertions to balance braces
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/1hJO-2TFnrE | 66 |
| 3 |  # 05.10.2026
856. Score of Parentheses
medium
Evaluate braces concatenation is sum and wrap is *2
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/IMKwRwVNLYc | 79 |
| 4 |  # 04.10.2026
678. Valid Parenthesis String
medium
Balance braces with wildcard
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/N64Oc3Qcxy4 | 100 |
| 5 |  # 03.10.2026
32. Longest Valid Parentheses
hard
Longest valid substring
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/xVI2gFx8nIE | 106 |
| 6 |  # 02.10.2026
22. Generate Parentheses
medium
Generate all combinations of n braces pairs
blog: https://dmitrysamoylenko.com/leetcode/
substack: https://leetcode.com/problems/generate-parentheses/solutions/8551747/kotlin-rust-by-samoylenkodmitry-2z0a/
youtube: https://youtu.be/YXnG78jR1TA | 107 |
| 7 |  # 01.10.2026
20. Valid Parentheses
easy
Are braces valid
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/Xcdre6LvKG0 | 107 |
| 8 |  # 30.09.2026
1111. Maximum Nesting Depth of Two Valid Parentheses Strings
medium
Min braces depth subsequence split
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/rPVRA34JlEQ | 113 |
| 9 |  # 29.09.2026
2267. Check if There Is a Valid Parentheses String Path
hard
Any balanced braces-path
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/KBZq0OKZbZg | 119 |
| 10 |  # 28.09.2026
1614. Maximum Nesting Depth of the Parentheses
easy
Max nested braces depth
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/ED6MYwu_wcI | 133 |
| 11 |  # 27.09.2026
1190. Reverse Substrings Between Each Pair of Parentheses
medium
Reverse the substrings in braces
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/N011EDAhDv4 | 131 |
| 12 |  # 26.09.2026
1807. Evaluate the Bracket Pairs of a String
medium
Replace keys in braces with values
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/AdPcsLrY6RA | 145 |
| 13 |  # 25.09.2026
1096. Brace Expansion II
hard
Expand sets-expression {x,y}z
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/Je8lpqA9Kxw | 143 |
| 14 |  # 24.09.2026
3550. Smallest Index With Digit Sum Equal to Index
easy
Position equal to number digits sum
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/1mhYPbjj8cc | 143 |
| 15 |  # 23.09.2026
1658. Minimum Operations to Reduce X to Zero
medium
Min operations to remove first or last elements sum of x
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/7u1twJHot1Q | 133 |
| 16 |  # 22.09.2026
3525. Find X Value of Array II
hard
Queries of count subarrays product%k = x for x in 0..<k in suffixes s..end
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/UWfFrekrWsk | 130 |
| 17 |  # 21.09.2026
3524. Find X Value of Array I
medium
Count subarrays product%k = x for x in 0..<k
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/d1IseeJYev8 | 132 |
| 18 |  # 20.09.2026
3498. Reverse Degree of a String
easy
Sum position times reversed letter
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/ay2LL9nVUJE | 151 |
| 19 |  # 19.09.2026
1401. Circle and Rectangle Overlapping
medium
Do circle intersect the resct
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/v2bpKVLACUE | 159 |
| 20 |  # 18.09.2026
1520. Maximum Number of Non-Overlapping Substrings
hard
Max substrings containing all it's chars
blog: https://dmitrysamoylenko.com/leetcode/
youtube: https://youtu.be/k_7uq89gTTk | 153 |
