STL Algorithms
Replace common loops with pre-built algorithms. Learn sort, find, binary_search, and iterators.
Lessons
1. Intro
Why algorithms matter
2. The Algorithm Header
Required includes
3. sort Basics
Default sorting
4. Custom Comparators
Changing sort order
5. Quiz: Algorithm Basics
Algorithm header
6. reverse
Reversing ranges
7. min_element and max_element
Locating min and max
8. Quiz: min_element Usage
Knowledge check
9. find
Searching for values
10. count
Count occurrences
11. binary_search
Find insertion point
12. Quiz: binary_search Requirements
Knowledge check
13. lower_bound
Finding insertion points
14. upper_bound
Beyond the value
15. Bounds Example
Practical usage
16. Quiz: lower_bound vs upper_bound
Knowledge check
17. accumulate
Computing totals
18. fill
Initializing ranges
19. unique
Consecutive duplicates only
20. Quiz: unique Behavior
Knowledge check
21. Unique Pattern
Complete deduplication
22. next_permutation
All arrangements
23. Permutation Example
Trying all orders
24. Quiz: next_permutation Setup
Knowledge check
25. Combining Algorithms
Chaining operations
26. Pattern: Sort and Count
Frequency analysis
27. Quiz: Ordering elements
Ordering elements
28. Pattern: Transform and Filter
Processing elements
29. Quiz: Algorithm Complexity
Knowledge check
30. Common Mistakes
What to avoid
31. Iterator Safety
Proper usage
32. Performance Tips
Choosing wisely
33. Practice: Array Manipulation
Hands-on coding
34. Quiz: Counter-based loop
Counter-based loop
35. Quiz: Practical Application
Knowledge check
36. Practice: Binary Search Variants
Search challenges
37. Practice: Permutation Problems
Arrangement challenges
38. Problem - Helpful Maths
Reordering expression
39. Helpful Maths - The Pattern
Character filtering
40. Helpful Maths - Algorithm
Breaking it down
41. Quiz: Knowledge check
Knowledge check
42. Helpful Maths - Implementation
Complete solution
43. Lessons from Helpful Maths
summary
44. Problem - Arrival of the General
Finding positions
45. Arrival - The Pattern
Counting moves
46. Arrival - Algorithm
Breaking it down
47. Quiz: Knowledge check
Knowledge check
48. Arrival - Implementation
Complete solution
49. Lessons from Arrival
summary
50. Section Recap
What we learned