Problems
Multiplication Problem#8663
Easy · Math
Charity work#8664
Medium · Number theory · Math
Square#8665
Easy · Geometry
Cow Cotillion#8666
Very easy · Implementation
Cow Treats#8667
Very easy · Implementation
Hexagonal Pasture Network#8668
Medium · Graphs
All divisors#8669
Easy · Math
Degree of two#8670
Very easy · Bitwise Operations
Representable with sum of squares#8671
Very easy · Brute force · Math
Square root#8672
Very easy · Math
Equation - 1#8673
Easy · Math
Game#8674
Easy · Greedy algorithms
Another Game#8675
Very easy · Dynamic programming
Express As The Sum#8676
Easy · Math · Brute force
XOR#8677
Medium · Bitwise Operations · Dynamic programming
Birches#8678
Easy · Prefix Sums · Math
Divide by 3#8679
Very easy · Implementation
Even neighbours#8680
Very easy · Implementation
Product of nonzero digits#8681
Very easy · Implementation
Remove even digits#8682
Very easy · Implementation
The sum of products of digits#8683
Very easy · Math
Sum and amount#8684
Very easy · Implementation
Arithmetical mean#8685
Very easy · Implementation
Perimeter of triangle#8687
Very easy · Implementation
The number of numbers without 8#8688
Hard · Dynamic programming