LeetCode 75 Study Plan: All 75 Questions, Visualized
LeetCode 75 is LeetCode's own study plan: 75 problems in 22 topics, from arrays and strings through graphs, DP and monotonic stacks. Here is the full list in its order. 59 of the 75 link to a FaangPrep lesson that runs the solution step by step; every problem also links to LeetCode, so you can submit there.
Each topic heading links to the page that teaches the pattern. Want a different list? The Grind 75 is a week-by-week plan, the Blind 75 is the classic, and the NeetCode 150 goes deeper by pattern.
LeetCode 75 is published by LeetCode; this page only maps its public list to our lessons. Looking for problem 75 itself? That is Sort Colors.
Array / String (9)
01
02
Greatest Common Divisor of Strings03
04
05
06
07
08
09
Two Pointers (4)
10
11
12
13
Sliding Window (4)
14
15
16
17
Prefix Sum (2)
18
19
Hash Map / Set (4)
20
21
22
23
Stack (3)
24
25
26
Queue (2)
27
28
Linked List (4)
29
30
31
32
Binary Tree - DFS (6)
33
34
Leaf-Similar Trees35
36
Path Sum III37
Longest ZigZag Path in a Binary Tree38
Binary Tree - BFS (2)
39
40
Binary Search Tree (2)
41
42
Graphs - DFS (4)
43
Keys and Rooms44
45
Reorder Routes to Make All Paths Lead to the City Zero46
Evaluate Division
Graphs - BFS (2)
47
Nearest Exit from Entrance in Maze48
Heap / Priority Queue (4)
49
50
Smallest Number in Infinite Set51
Maximum Subsequence Score52
Total Cost to Hire K Workers
Binary Search (4)
53
54
Successful Pairs of Spells and Potions55
56
Backtracking (2)
57
58
Combination Sum III
DP - 1D (4)
59
60
61
62
Domino and Tromino Tiling
DP - Multidimensional (4)
63
64
65
66
Bit Manipulation (3)
67
68
69
Minimum Flips to Make a OR b Equal to c
Trie (2)
70
71
Search Suggestions System
Intervals (2)
72
73
Monotonic Stack (2)
74
75
LeetCode 75 questions, answered
What is LeetCode 75?
LeetCode's official study plan for coding interviews: 75 problems grouped into 22 topics, from Array / String and Two Pointers to Graphs, DP, Trie, Intervals and Monotonic Stack. It has 22 Easy and 53 Medium problems and no Hard ones, and many are newer problems that the older lists do not include.
LeetCode 75 vs Blind 75: what is the difference?
Only 10 problems are on both lists. Blind 75 is a 2018 list of classic interview questions; LeetCode 75 is LeetCode's own, newer plan with no Hard problems and a few warm-ups per topic. Either covers the core patterns; pick one and finish it.
LeetCode 75 vs NeetCode 150 or Grind 75?
20 LeetCode 75 problems are in the NeetCode 150 and 10 are in the Grind 75. The NeetCode 150 is twice as long and goes deeper per pattern; the Grind 75 adds a week-by-week schedule. LeetCode 75 is a good first pass because its topics are laid out in learning order.
LeetCode 75 vs Top Interview 150?
Top Interview 150 is LeetCode's longer study plan of 150 classic interview questions. LeetCode 75 is the shorter, gentler one. A common path is LeetCode 75 first, then Top Interview 150 for more practice on the same topics.
Is "LeetCode 75" also problem 75?
Yes, problem 75 on LeetCode is Sort Colors, the Dutch national flag problem, which is a different thing from the study plan. We have a visual walkthrough of it too.