Goldman Sachs Interview Questions (270)

Practice real interview problems from Goldman Sachs

Title	Solution	Practice	Difficulty	Companies	Topics
1. Two Sum	Solution	Solve	Easy	Accenture+128	Array Hash Table
2. Add Two Numbers	Solution	Solve	Medium	Accenture+37	Linked List Math+1
3. Longest Substring Without Repeating Characters	Solution	Solve	Medium	Accenture+111	Hash Table Sliding Window+1
4. Median of Two Sorted Arrays	Solution	Solve	Hard	Accenture+46	Array Binary Search+1
5. Longest Palindromic Substring	Solution	Solve	Medium	Accenture+75	Dynamic Programming String+1
8. String to Integer (atoi)	Solution	Solve	Medium	Accenture+18	String
11. Container With Most Water	Solution	Solve	Medium	Accenture+57	Array Greedy+1
12. Integer to Roman	Solution	Solve	Medium	Accenture+31	Hash Table Math+1
13. Roman to Integer	Solution	Solve	Easy	Accenture+44	Hash Table Math+1
15. 3Sum	Solution	Solve	Medium	Accenture+60	Array Sorting+1
17. Letter Combinations of a Phone Number	Solution	Solve	Medium	Accenture+39	Backtracking Hash Table+1
19. Remove Nth Node From End of List	Solution	Solve	Medium	Accenture+18	Linked List Two Pointers
20. Valid Parentheses	Solution	Solve	Easy	Accenture+118	Stack String
21. Merge Two Sorted Lists	Solution	Solve	Easy	Adobe+39	Linked List Recursion
22. Generate Parentheses	Solution	Solve	Medium	Accenture+39	Backtracking Dynamic Programming+1
23. Merge k Sorted Lists	Solution	Solve	Hard	Accenture+52	Divide and Conquer Heap (Priority Queue)+2
25. Reverse Nodes in k-Group	Solution	Solve	Hard	Adobe+27	Linked List Recursion
31. Next Permutation	Solution	Solve	Medium	Adobe+30	Array Two Pointers
32. Longest Valid Parentheses	Solution	Solve	Hard	Accenture+27	Dynamic Programming Stack+1
33. Search in Rotated Sorted Array	Solution	Solve	Medium	Accolite+54	Array Binary Search
34. Find First and Last Position of Element in Sorted Array	Solution	Solve	Medium	Accenture+30	Array Binary Search
36. Valid Sudoku	Solution	Solve	Medium	Adobe+29	Array Hash Table+1
37. Sudoku Solver	Solution	Solve	Hard	Adobe+17	Array Backtracking+2
40. Combination Sum II	Solution	Solve	Medium	Adobe+16	Array Backtracking
41. First Missing Positive	Solution	Solve	Hard	Adobe+34	Array Hash Table
42. Trapping Rain Water	Solution	Solve	Hard	Accenture+77	Array Dynamic Programming+3
45. Jump Game II	Solution	Solve	Medium	Adobe+27	Array Dynamic Programming+1
46. Permutations	Solution	Solve	Medium	Adobe+25	Array Backtracking
47. Permutations II	Solution	Solve	Medium	Amazon+8	Array Backtracking
48. Rotate Image	Solution	Solve	Medium	Accenture+36	Array Math+1
49. Group Anagrams	Solution	Solve	Medium	Accolite+90	Array Hash Table+2
50. Pow(x, n)	Solution	Solve	Medium	Accenture+22	Math Recursion
51. N-Queens	Solution	Solve	Hard	Adobe+15	Array Backtracking
53. Maximum Subarray	Solution	Solve	Medium	Accenture+65	Array Divide and Conquer+1
54. Spiral Matrix	Solution	Solve	Medium	Accenture+52	Array Matrix+1
55. Jump Game	Solution	Solve	Medium	Adobe+33	Array Dynamic Programming+1
56. Merge Intervals	Solution	Solve	Medium	Accenture+108	Array Sorting
59. Spiral Matrix II	Solution	Solve	Medium	Adobe+8	Array Matrix+1
62. Unique Paths	Solution	Solve	Medium	Accenture+21	Combinatorics Dynamic Programming+1
63. Unique Paths II	Solution	Solve	Medium	Agoda+11	Array Dynamic Programming+1
64. Minimum Path Sum	Solution	Solve	Medium	Amazon+16	Array Dynamic Programming+1
68. Text Justification	Solution	Solve	Hard	Airbnb+39	Array Simulation+1
69. Sqrt(x)	Solution	Solve	Easy	Adobe+18	Binary Search Math
70. Climbing Stairs	Solution	Solve	Easy	Accenture+37	Dynamic Programming Math+1
73. Set Matrix Zeroes	Solution	Solve	Medium	Amazon+23	Array Hash Table+1
74. Search a 2D Matrix	Solution	Solve	Medium	Accenture+18	Array Binary Search+1
75. Sort Colors	Solution	Solve	Medium	Adobe+33	Array Sorting+1
76. Minimum Window Substring	Solution	Solve	Hard	Adobe+33	Hash Table Sliding Window+1
78. Subsets	Solution	Solve	Medium	Adobe+19	Array Backtracking+1
79. Word Search	Solution	Solve	Medium	Accenture+39	Array Backtracking+2