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DSA Problem Sheets
Data Structures & Algorithms
📋 70 Problems● Easy 33● Medium 32● Hard 5
☕ Java🐍 Python⚙️ C++🟡 JavaScript
Showing 15 of 70 problems · Two Pointer
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Title
Difficulty
2
Find a Pair That Sums to a Target in a Sorted Array
Easy
6
Merge Two Sorted Arrays Into the First Array In Place
Easy
7
Produce the Sorted List of Squared Values
Easy
8
Remove Repeated Values from a Sorted Array
Easy
11
Shift All Zeros to the End of the Array
Easy
14
Find the Triplet Sum Nearest to a Target Value
Medium
15
List Every Unique Quadruplet That Sums to a Target
Medium
16
List Every Unique Triplet That Sums to Zero
Medium
17
Maximum Water Trapped Between Two Vertical Lines
Medium
18
Minimum Rescue Boats Needed Under a Weight Limit
Medium
19
Sort an Array Containing Only 0s, 1s, and 2s
Medium
20
Total Rainwater Trapped Across an Elevation Map
Hard
22
Check If a Sentence Reads the Same Ignoring Case and Symbols
Easy
53
Reverse a String In-Place
Easy
56
Reverse the Order of Words in a Sentence
Medium