Problems
Easy problem for Dino#9638
Very easy · Math
Big array of Dino#9639
Medium · Sorting · Prefix Sums
Dino and fetters#9640
Easy · Greedy algorithms
Cold Days in Dinotopia#9641
Hard · Brute force · Implementation
Good pairs#9642
Medium · Sorting · Binary Search · Segment Tree
Catalan numbers#9643
Easy · Math · Number theory
Sum of powers#9644
Medium · Number theory · Binary Search
Sum of powers 2#9646
Very easy · Math
Optimal Matrix Multiplication#9647
Very easy · Dynamic programming
Sort the digits of numbers#9648
Very easy · Sorting
Java Fraction 1#9649
Very easy · Implementation
Java Reduce a fraction#9650
Very easy · Math
Java Fraction 2#9651
Very easy · Implementation
Java MyLong Add#9652
Very easy · Math
Java MyDouble Arithmetic Operations#9653
Very easy · Math
Depth-First Search on a Disconnected Graph#9654
Medium · Graphs · Depth-first Search
Mr. Nine and his love for mangoes#9655
Very easy · Trees
Java Inheritance Shape#9656
Very easy · Implementation
Java Inheritance Rectangle Square#9657
Very easy · Implementation
Java Person Teacher 1#9658
Very easy · Implementation
Java Person Teacher 2#9659
Very easy · Implementation
Java Person Teacher 3#9660
Very easy · Implementation
Java Person Teacher 4#9661
Very easy · Implementation
Java Person Teacher 5#9662
Easy · Sorting
Java Person Teacher 6#9663
Easy · Sorting