Problems
Long root#1497
Medium · Binary Search
KMP#1498
Medium · Strings · Prefix Function
Lines#1499
Very easy · Brute force
Cyclic string#1500
Easy · Prefix Function · Strings
Conic Distance#1501
Hard · Geometry · Math
Center of Masses#1502
Very easy · Geometry
Circum Triangle#1503
Easy · Geometry
Maximal Quadrilateral#1504
Very easy · Geometry
Segments intersection - 2#1505
Easy · Geometry
Crossed Ladders#1506
Medium · Binary Search · Math
The Laurel-Hardy Story#1507
Hard · Geometry · Math
Rose windows#1508
Hard · Geometry · Math
Kingdom Division#1509
Medium · Geometry · Math
Circle through three points#1510
Very easy · Geometry
Cake Division#1511
Very easy · Dynamic programming · Divide and Conquer
Farey sequences#1512
Easy · Number theory · Sorting · Brute force
Pre, in and post#1513
Medium · Trees · Divide and Conquer · Depth-first Search
Hidden Truth in Recurrence#1514
Very easy · Math
Repeated Josephus#1515
Very easy · Math
Constructing BST#1516
Very easy · Trees · Binary Search · Graphs
Simple Addition#1517
Easy · Math · Dynamic programming
Triangle Partitioning#1518
Very easy · Geometry · Sorting
Gray codes#1519
Easy · Math · Divide and Conquer
Odd Divisors#1520
Easy · Math
Optimal Matrix Multiplication - 2#1521
Very easy · Dynamic programming