Problems
Counting Quadrilaterals#1710
Easy · Number theory · Geometry
Maximum flow 0#1711
Very easy · Graphs
Maximum Flow 2#1712
Easy · Graphs
Genetic Code#1713
Medium · Depth-first Search · Constructive Algorithms · Strings · Brute force
Decomposition of the Flow#1714
Very easy · Graphs · Graph network flows
Hackers#1715
Hard · Graphs · Graph network flows
Getting Chorded#1716
Easy · Strings
OULIPO#1717
Very easy · Strings
Prefix reversal#1718
Easy · Strings
Pretty Tables#1719
Very easy · Dynamic programming
Dedication#1720
Very hard · Graphs · Shortest paths
Matches#1721
Medium · Games
Sum it up#1722
Medium · Brute force · Depth-first Search · Combinatorics
Colored Balls#1723
Very easy · Probabilities
Capital#1724
Very easy · Graphs
Metro#1725
Medium · Graphs
Customs duties-1#1726
Easy · Graphs
Customs duties-2#1727
Medium · Graphs
Customs duties-3#1728
Very hard · Graphs
A + B Problem#1729
Medium · Dynamic programming
DNA Analysis#1730
Medium · Strings
Secret Message#1737
Very easy · Graphs
Filling with domino#1738
Very easy · Graphs · Greedy algorithms
A + B#1739
Very easy · Implementation
Maximum Subpalindrome#1740
Very easy · Dynamic programming