समस्याएँ
The Power of the Hero#1893
बहुत आसान · Brute force
Caravans#1894
बहुत आसान · Prefix Sums · Brute force
Who visits early in the morning#1895
आसान · Graphs
Prince or Impostor#1896
बहुत आसान · Strings · String suffix structures
Spinner Wheel#1897
बहुत आसान · Probabilities
Tile Laying#1898
बहुत आसान · Prefix Sums
Passage of the Corridor#1899
आसान · Implementation
Game#1900
मध्यम · Games · Math
A very friendly group#1902
आसान · Combinatorics · Bitmasks · Dynamic programming
Trees with an odd number of independent sets#1903
मध्यम · Dynamic programming
Maximum degree of a prime#1904
कठिन · Number theory
Minimum degree of prime#1905
मध्यम · Number theory
Anniversary#1906
कठिन · Math · Number theory
Trade#1907
कठिन · Graphs · Greedy algorithms
Grid#1908
आसान · Geometry · Math
Drawing#1909
मध्यम · Dynamic programming · Probabilities · Combinatorics
Empire#1910
बहुत आसान · Graphs
Reform#1911
बहुत कठिन · Graphs · Greedy algorithms
Constellation#1912
आसान · Graphs
Gifts#1913
बहुत कठिन · Graph matchings · Dynamic Programming Optimization
ICPC#1914
बहुत कठिन · Graphs
Numbers#1915
बहुत आसान · Implementation
English#1916
आसान · Implementation
Diamond#1917
आसान · Dynamic programming
Puzzle#1918
आसान · Greedy algorithms · Sorting