Problems
Sequence Reconstruction#3695
Easy · Number theory · Math
Planet#3696
Hard · Math · Matrix · Number theory · Combinatorics
Rooms#3697
Hard · Graphs
Random Line Generator#3698
Very hard · Probabilities
Placement of Rooks#3699
Medium · Combinatorics · Dynamic programming
Switches#3700
Very hard · Probabilities
Cannon#3701
Easy · Geometry
Divisors of the number#3702
Medium · Brute force
Grimm's Hypothesis#3703
Hard · Graph matchings · Greedy algorithms · Prime factorization
Help Vasya#3704
Very hard · Graphs · Shortest paths
Root#3705
Very easy · Number theory
Sequence#3706
Easy · Dynamic programming · Matrix
16 digits#3707
Very easy · Math · Number theory
Droid Flies#3708
Very hard · Geometry
Square root#3709
Medium · Number theory
Tree#3710
Medium · Dynamic programming · Trees
Subtract the square#3711
Very easy · Games
Separate the pile#3712
Easy · Games · Brute force
Poddavki#3713
Easy · Games
The Kid and Karlsson#3714
Easy · Games
Super Greedy#3715
Easy · Games
Super Greedy 2#3716
Very easy · Games
Greedy#3717
Medium · Games
Sum of games#3718
Medium · Games
Terminator#3719
Easy · Games