Strings vs Arrays: What's the Real Difference?
Strings are not magic text. In DSA, a String is easiest to understand as ordered characters with indexes, memory, and operation costs.
Next topic: String Immutability.
In this beginner-friendly DSA lesson, you will understand strings as character arrays, character sequence, zero-based indexing, length vs last index, direct access, traversal, searching in strings, ASCII, Unicode, and why different string operations have different time complexity.
Chapters:
0:00 Why Strings matter in real code
0:20 Letter tile analogy
0:45 String as character Array
1:10 Indexing starts from zero
1:35 Quick question: what is s[2]?
1:55 Length vs last index
2:20 Memory row view
2:45 Direct access by index
3:10 Traversal one by one
3:35 Searching inside a String
4:00 Access vs Search mini test
4:20 Characters as numeric codes
4:40 Unicode for real text
4:55 Operations memory map
5:10 Next topic: String Immutability
VIDEOS TO watch next
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