Coding Challenges
Practice. Prove. Get Hired. Solve real-world problems and showcase your skills to GCC employers.
243
Challenges
99
Easy
106
Medium
38
Hard
○
Rotate String
Strings
String
3
Submissions
0.00%
Acceptance
○
Monotonic Array
Arrays
Array
1
Submissions
0.00%
Acceptance
○
Majority Element II (Count)
Arrays
Array
Hash Table
512
Submissions
65.28%
Acceptance
○
Missing Ranges
Arrays
Array
1,840
Submissions
61.42%
Acceptance
○
Valid Perfect Square
Math
Math
Binary Search
6,778
Submissions
63.25%
Acceptance
○
Guess Number Higher or Lower
Searching
Binary Search
5,891
Submissions
68.96%
Acceptance
○
Convert Sorted Array to BST
Trees
Array
Tree
BST
3,152
Submissions
64.49%
Acceptance
○
Sum of Left Leaves
Trees
Tree
DFS
9,623
Submissions
81.76%
Acceptance
○
Assign Cookies
Arrays
Array
Greedy
Sorting
13,295
Submissions
84.53%
Acceptance
○
Keyboard Row
Strings
Array
Hash Table
String
1,059
Submissions
83.04%
Acceptance
○
Next Greater Element I
Stacks
Array
Stack
Hash Table
14,552
Submissions
81.75%
Acceptance
○
Relative Sort Array
Arrays
Array
Sorting
Hash Table
6,981
Submissions
85.34%
Acceptance
○
Replace Elements with Greatest on Right
Arrays
Array
9,180
Submissions
70.00%
Acceptance
○
Find All Numbers Disappeared
Arrays
Array
Hash Table
5,704
Submissions
77.32%
Acceptance
○
Maximum Product of Two Elements
Arrays
Array
Sorting
14,872
Submissions
78.07%
Acceptance
○
Jewels and Stones
Strings
Hash Table
String
10,945
Submissions
80.87%
Acceptance
○
Defanging an IP Address
Strings
String
14,688
Submissions
68.66%
Acceptance
○
Running Sum of 1D Array
Arrays
Array
Prefix Sum
3,600
Submissions
85.44%
Acceptance
○
Shuffle the Array
Arrays
Array
3,555
Submissions
79.38%
Acceptance
○
XOR Operation in Array
Math
Math
Bit Manipulation
1,366
Submissions
81.50%
Acceptance