Data Structures
stack

21 problems

#

Title

Acceptance

Difficulty

1

Problem Challenge 2: Comparing Strings containing Backspaces (medium)
string
two pointers
stack
+1 more

16.8%

Med.

2

linked list
recursion
sorting
+4 more

80.1%

easy

3

stack
string
depth-first search
+1 more

30.1%

easy

4

85.1%

easy

5

array
stack
two pointers
+3 more

31.5%

easy

6

69.7%

easy

7

25.2%

Med.

8

58.6%

easy

9

stack
monotonic stack
array
+1 more

55.3%

easy

10

monotonic stack
array
stack

54.8%

easy

11

37.0%

Med.

12

monotonic stack
array
stack
+1 more

67.6%

Med.

13

greedy algorithm
stack
string
+1 more

12.6%

hard

14

stack
hash map
priority queue
+2 more

40.0%

hard

15

48.3%

Med.

16

string
greedy algorithm
monotonic stack
+3 more

18.0%

Med.

17

array
backtracking
stack

36.4%

Med.

18

stack
string
simulation
+1 more

37.9%

easy

19

stack
monotonic stack
array
+2 more

49.6%

Med.

20

recursion
string
backtracking
+1 more

45.2%

Med.

21

stack
string
breadth-first search
+3 more

15.7%

hard