Week 6

Patterns: Cyclic Sort, Fast & Slow Pointers
Total Problems: 16
Completed: 15 (94%)

Progress by Difficulty

Difficulty	Total	Completed	Remaining	Percentage
🟢 Easy	6	6	0	100%
🟡 Medium	9	9	0	100%
🔴 Hard	1	0	1	0%

#	Problem	Pattern	D	Status	Conf
71	Linked List Cycle	Fast & Slow Pointers	E	✅	HGH
72	Happy Number	Fast & Slow Pointers	E	✅	HGH
73	Middle of the Linked List	Fast & Slow Pointers	E	✅	HGH
74	Remove Nth Node From End of List	Fast & Slow Pointers	M	✅	HGH
75	Linked List Cycle II	Fast & Slow Pointers	M	✅	HGH
76	Reorder List	Fast & Slow Pointers	M	✅	LOW
77	Palindrome Linked List	Fast & Slow Pointers	M	✅	HGH
78	Find the Duplicate Number	Fast & Slow Pointers	M	✅	MED
79	Circular Array Loop	Fast & Slow Pointers	H	⬜	–
80	Missing Number	Cyclic Sort	E	✅	HGH
81	Find the Duplicate Number	Cyclic Sort	E	✅	HGH
82	Find All Numbers Disappeared in an Array	Cyclic Sort	E	✅	HGH
83	First Missing Positive	Cyclic Sort	M	✅	HGH
84	Smallest Missing Positive	Cyclic Sort	M	✅	HGH
85	Find All Duplicates in an Array	Cyclic Sort	M	✅	HGH
86	Set Mismatch	Cyclic Sort	M	✅	HGH

Last Updated: 2026-02-13 19:40:00
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