Interview Problems
Practice coding problems with detailed solutions and explanations
| Ranking | Problem | Difficulty | Companies | Topics | Frequency |
|---|---|---|---|---|---|
| #2 |
Valid Parentheses |
Easy |
+6 more
|
Cadena
Pila
|
89%
|
| #19 |
Meeting Rooms II |
Medium |
+6 more
|
Array
Dos Punteros
+3 more
|
88%
|
| #21 |
Lowest Common Ancestor of a Binary Tree |
Medium |
+6 more
|
Árbol
Búsqueda en Profundidad
+1 more
|
85%
|
| #24 |
Spiral Matrix |
Medium |
+6 more
|
Array
Matriz
+1 more
|
73%
|
| #26 |
Find Minimum in Rotated Sorted Array |
Medium |
+6 more
|
Array
Búsqueda Binaria
|
84%
|
| #28 |
Combination Sum |
Medium |
+6 more
|
Array
Backtracking
|
78%
|
| #31 |
Container With Most Water |
Medium |
+6 more
|
Array
Dos Punteros
+1 more
|
86%
|
| #33 |
Rotate Array |
Medium |
+6 more
|
Array
Matemáticas
+1 more
|
72%
|
| #37 |
Unique Paths |
Medium |
+6 more
|
Matemáticas
Programación Dinámica
+1 more
|
76%
|
| #38 |
Set Matrix Zeroes |
Medium |
+6 more
|
Array
Tabla Hash
+1 more
|
71%
|
| #40 |
Coin Change |
Medium |
+6 more
|
Array
Programación Dinámica
+1 more
|
90%
|
| #44 |
Trapping Rain Water |
Hard |
+6 more
|
Array
Two Pointers
+2 more
|
92%
|