• 10 Days of Statistics
• Algorithms
• Data Structures

Solutions are coded using C++

10 Days of Statistics

Day	Challenge	Points	Solution
0	Mean, Median, and Mode	30	solution.cpp
0	Weighted Mean	30	solution.cpp
1	Quartiles	30	solution.cpp
1	Interquartile Range	30	solution.cpp
1	Standard Deviation	30	solution.cpp
2	Basic Probability	10	solution
2	More Dice	10	solution
2	Compound Event Probability	10	solution
3	Conditional Probability	10	solution
3	Cards of the Same Suit	10	solution
3	Drawing Marbles	10	solution
4	Binomial Distribution I	30	solution.cpp
4	Binomial Distribution II	30	solution.cpp
4	Geometric Distribution I	30	solution.cpp
4	Geometric Distribution II	30	solution.cpp
5	Poisson Distribution I	30	solution.cpp
5	Poisson Distribution II	30	solution.cpp
5	Normal Distribution I	30	solution.cpp
5	Normal Distribution II	30	solution.cpp
6	The Central Limit Theorem I	30	solution.cpp
6	The Central Limit Theorem II	30	solution.cpp
6	The Central Limit Theorem III	30	solution.cpp
7	Pearson Correlation Coefficient I	30	solution.cpp
7	Spearman's Rank Correlation Coefficient	30	solution.cpp
8	Least Square Regression Line	30	solution.cpp
8	Pearson Correlation Coefficient II	30	solution
9	Multiple Linear Regression	30	solution.cpp

Algorithms

Subdomain	Challenge	Points	Solution
Sorting	Correctness and the Loop Invariant	30	solution.cpp
Sorting	Insertion Sort - Part 1	30	solution.cpp
Sorting	Insertion Sort - Part 2	30	solution.cpp
Sorting	Running Time of Algorithms	30	solution.cpp
Strings	HackerRank in a String!	20	solution.cpp
Strings	Making Anagrams	30	solution.cpp
Graph Theory	Breadth First Search: Shortest Reach	55	solution.cpp
Graph Theory	Even Tree	50	solution.cpp
Graph Theory	Journey to the Moon	50	solution.cpp
Graph Theory	Kruskal (MST): Really Special Subtree	50	solution.cpp
Graph Theory	Prim's (MST) : Special Subtree	60	solution.cpp
Graph Theory	Roads and Libraries	30	solution.cpp
Implementation	Angry Professor	20	solution.cpp
Implementation	Apple and Orange	10	solution.cpp
Implementation	Between Two Sets	10	solution.cpp
Implementation	Bon Appétit	10	solution.cpp
Implementation	Circular Array Rotation	20	solution.cpp
Implementation	Day of the Programmer	15	solution.cpp
Implementation	Designer PDF Viewer	20	solution.cpp
Implementation	Divisible Sum Pairs	10	solution.cpp
Implementation	Grading Students	10	solution.cpp
Implementation	Kangaroo	10	solution.cpp
Implementation	Forming a Magic Square	20	solution.py
Implementation	Picking Numbers	20	solution.py
Warmup	A Very Big Sum	10	solution.cpp
Warmup	Birthday Cake Candles	10	solution.cpp
Warmup	Compare the Triplets	10	solution.cpp
Warmup	Diagonal Difference	10	solution.cpp
Warmup	Mini-Max Sum	10	solution.cpp
Warmup	Plus Minus	10	solution.cpp
Warmup	Simple Array Sum	10	solution.cpp
Warmup	Solve Me First	1	solution.cpp
Warmup	Staircase	10	solution.cpp
Warmup	Time Conversion	15	solution.cpp
Search	Ice Cream Parlor	30	solution.cpp
Search	Missing Numbers	45	solution.cpp
Dynamic Programming	Bricks Game	55	solution.cpp
Dynamic Programming	Fibonacci Modified	45	solution.cpp

Data Structures

Subdomain	Challenge	Points	Solution
Arrays	Array Manipulation	60	solution.cpp
Arrays	Sparse Arrays	25	solution.cpp