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
○
Number of Good Pairs
Arrays
Array
Hash Table
Math
4,162
Submissions
71.25%
Acceptance
○
Kids With the Greatest Number of Candies
Arrays
Array
11,476
Submissions
80.36%
Acceptance
○
Shuffle String
Strings
Array
String
10,826
Submissions
84.98%
Acceptance
○
Richest Customer Wealth
Arrays
Array
Matrix
3,848
Submissions
61.59%
Acceptance
○
Decompress Run-Length Encoded List
Arrays
Array
14,440
Submissions
67.42%
Acceptance
○
Create Target Array
Arrays
Array
14,074
Submissions
67.27%
Acceptance
○
Count Negative Numbers in Grid
Arrays
Array
Binary Search
Matrix
6,840
Submissions
84.23%
Acceptance
○
Lucky Numbers in Matrix
Arrays
Array
Matrix
4,860
Submissions
62.75%
Acceptance
○
Maximum Nesting Depth of Parentheses
Strings
String
Stack
5,305
Submissions
71.39%
Acceptance
○
Check if Two String Arrays are Equivalent
Strings
Array
String
14,559
Submissions
81.11%
Acceptance
○
Truncate Sentence
Strings
Array
String
12,227
Submissions
73.74%
Acceptance
○
Check if Array is Sorted and Rotated
Arrays
Array
8,610
Submissions
79.56%
Acceptance
○
Sum of Unique Elements
Arrays
Array
Hash Table
13,888
Submissions
66.17%
Acceptance
○
Maximum Population Year
Arrays
Array
Counting
2,310
Submissions
73.32%
Acceptance
○
Find Target Indices After Sorting
Searching
Array
Binary Search
Sorting
7,758
Submissions
75.34%
Acceptance
○
Two Furthest Houses With Different Colors
Arrays
Array
Greedy
5,549
Submissions
62.16%
Acceptance
○
Count Operations to Obtain Zero
Math
Math
6,056
Submissions
70.92%
Acceptance
○
Minimum Sum of Four Digit Number
Math
Math
Greedy
Sorting
9,109
Submissions
76.98%
Acceptance
○
Largest 3-Same-Digit Number
Strings
String
4,764
Submissions
84.37%
Acceptance
○
Count Asterisks
Strings
String
6,343
Submissions
82.28%
Acceptance