Challenges - Swift
Concentric Number Square in Swift — Code, Output & Explanation
Print the concentric number square pattern in Swift with working code and output. Full implementation, sample run, and complexity analysis included.
October 18, 2026
Magic Square in Swift — With Code, Output & Explanation
Print the magic square pattern in Swift with working code and output. Full implementation, sample run, and complexity analysis included.
September 30, 2026
Alphabet Rhombus in Swift — With Code, Output & Explanation
Print the alphabet rhombus pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
September 18, 2026
Best Time to Buy and Sell Stock in Swift — Solution & Explanation
Solve Best Time to Buy and Sell Stock in Swift with working code. One-Pass Min Tracking (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
September 12, 2026
Spiral Number Matrix in Swift — With Code, Output & Explanation
Print the spiral number matrix pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
July 20, 2026
Spiral Maze Path in Swift — With Code, Output & Explanation
Print the spiral maze path pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
July 02, 2026
Snake Matrix in Swift — With Code, Output & Explanation
Print the snake matrix pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
June 04, 2026
Right Pascal Star in Swift — With Code, Output & Explanation
Print the right pascal star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
May 03, 2026
Reverse Linked List in Swift — Iterative (Optimal) & More
Solve Reverse Linked List in Swift with working code. Iterative (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
April 09, 2026
Repeated Letter Rows in Swift — With Code, Output & Explanation
Print the repeated letter rows pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
March 12, 2026
Pascal's Triangle in Swift — With Code, Output & Explanation
Print the pascal's triangle pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
January 21, 2026
Palindromic Number Pyramid in Swift — Code, Output & Explanation
Print the palindromic number pyramid pattern in Swift. Complete working code, expected output, and a clear step-by-step explanation for beginners learning loops.
December 18, 2025
Number Pyramid in Swift — With Code, Output & Explanation
Print the number pyramid pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
November 16, 2025
Maximum Subarray in Swift — Kadane's Algorithm (Optimal) & More
Solve Maximum Subarray in Swift with working code. Kadane's Algorithm (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
October 23, 2025
Letter Diamond in Swift — With Code, Output & Explanation
Print the letter diamond pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
September 01, 2025
Hollow Square Star in Swift — With Code, Output & Explanation
Print the hollow square star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
July 31, 2025
Hollow Cross Plus in Swift — With Code, Output & Explanation
Print the hollow cross plus pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
July 03, 2025
Floyd's Triangle in Swift — With Code, Output & Explanation
Print the floyd's triangle pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
June 09, 2025
Cross/Plus Sign Star in Swift — With Code, Output & Explanation
Print the cross/plus sign star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
May 14, 2025
Christmas Tree Star in Swift — With Code, Output & Explanation
Print the christmas tree star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
March 25, 2025
Checkerboard in Swift — With Code, Output & Explanation
Print the checkerboard pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
February 25, 2025
Right-Facing Arrowhead in Swift — With Code, Output & Explanation
Print the right-facing arrowhead pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
January 24, 2025
Alphabet Pyramid in Swift — With Code, Output & Explanation
Print the alphabet pyramid pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
December 31, 2024
Alphabet Hollow Diamond in Swift — Code, Output & Explanation
Print the alphabet hollow diamond pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
November 27, 2024
Alphabet Rectangle in Swift — With Code, Output & Explanation
Print the alphabet rectangle pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners learning loops.
November 09, 2024
Solid Square Star Pattern in Swift — Code, Output & Variations
Print the solid square star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners.
October 08, 2024
Right Triangle Star Pattern in Swift — Code, Output & Variations
Print the right triangle star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners.
September 10, 2024
Remove Duplicates from Sorted Array in Swift — Two Pointers
Solve Remove Duplicates from Sorted Array in Swift with working code. Two Pointers (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
August 29, 2024
Pyramid Star Pattern in Swift — With Code, Output & Variations
Print the pyramid star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners.
July 08, 2024
Linked List Cycle in Swift — Floyd's Tortoise & Hare & More
Solve Linked List Cycle in Swift with working code. Floyd's Tortoise & Hare (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
May 01, 2024
Left Triangle Star Pattern in Swift — Code, Output & Variations
Print the left triangle star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners.
April 07, 2024
Inverted Right Triangle Star Pattern in Swift — Code & Variations
Print the inverted right triangle star pattern in Swift. Complete working code, expected output, algorithm explanation, and practice variations for beginners.
February 23, 2024
Contains Duplicate in Swift — Hash Set (Optimal) & More
Solve Contains Duplicate in Swift with working code. Hash Set (Optimal) approach with O(n) time, plus complexity analysis and interview tips.
January 08, 2024