Algorithms
divide and conquer

10 problems

#

Title

Acceptance

Difficulty

1

Find Non-Duplicate Number Instances (easy)
array
two pointers
sorting
+3 more

42.5%

easy

2

Find the Duplicate Number (easy)
array
sorting
two pointers
+2 more

49.1%

easy

3

binary tree
breadth-first search
tree depth first search
+3 more

32.1%

Med.

4

binary tree
depth-first search
recursion
+2 more

56.9%

Med.

5

recursion
divide and conquer
dynamic programming

67.4%

hard

6

binary search tree
binary tree
recursion
+2 more

30.1%

hard

7

binary search
sorting
array
+2 more

24.0%

Med.

8

dynamic programming
recursion
greedy algorithm
+2 more

42.8%

Med.

9

recursion
backtracking
divide and conquer
+1 more

36.3%

Med.

10

binary search
array
sorting
+2 more

26.0%

Med.