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American-Express Questions

Here are the LeetCode questions for American-Express.

Total: 24
Easy: 9
Medium: 11
Hard: 4
Progress: 0%

Topic Frequency Analysis

All Topics

Rank Topic Frequency Percentage
1 Array 10
41.7%
2 String 8
33.3%
3 Hash Table 7
29.2%
4 Two Pointers 5
20.8%
5 Math 3
12.5%
6 Dynamic Programming 3
12.5%
7 Stack 2
8.3%
8 Sorting 2
8.3%
9 Simulation 2
8.3%
10 Linked List 1
4.2%
11 Backtracking 1
4.2%
12 Greedy 1
4.2%
13 Tree 1
4.2%
14 Depth-First Search 1
4.2%
15 Breadth-First Search 1
4.2%
16 Design 1
4.2%
17 Trie 1
4.2%
18 Sliding Window 1
4.2%
19 Heap (Priority Queue) 1
4.2%
20 Matrix 1
4.2%
21 Monotonic Stack 1
4.2%
22 Data Stream 1
4.2%
23 Enumeration 1
4.2%
No. Question Title Link Difficulty Solved
1 Divide an Array Into Subarrays With Minimum Cost II Visit Hard
2 Divide an Array Into Subarrays With Minimum Cost I Visit Easy
3 Minimum Number of Operations to Make Array XOR Equal to K Visit Medium
4 Maximum XOR After Operations Visit Medium
5 Percentage of Letter in String Visit Easy
6 Restricted Restricted Hard
7 Restricted Restricted Hard
8 Restricted Restricted Hard
9 Restricted Restricted Hard
10 Restricted Restricted Hard
11 Restricted Restricted Hard
12 Restricted Restricted Hard
13 Restricted Restricted Hard
14 Restricted Restricted Hard
15 Restricted Restricted Hard

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