समस्याएँ
Brackets#1994
आसान · Data Structures
How can I help?#1995
बहुत कठिन · Dynamic programming
Cupcakes#1996
आसान · Math
Approaching by progression#1997
बहुत आसान · Math
Tori#1998
आसान · Geometry
Palindrome#1999
कठिन · Strings
Minefield#2000
कठिन · Greedy algorithms
Device Survey#2001
बहुत आसान · Binary Search · Graphs
Pattern Coloring#2002
आसान · Sorting · Prefix Sums
Cellular communication#2003
कठिन · Graphs · Brute force
Routing#2004
बहुत कठिन · Binary Search
Weighing 2#2005
बहुत कठिन · Brute force · Combinatorics · Dynamic programming · Implementation · Graphs
Plus and xor#2006
आसान · Bitmasks
Gift#2007
मध्यम · Graphs · Greedy algorithms
Tourist#2008
मध्यम · Binary Search
Points#2009
आसान · Math
Mice and Cheese#2010
आसान · Greedy algorithms · Sorting
Mutation#2011
मध्यम · Dynamic programming · Implementation
Sequence#2012
बहुत आसान · Dynamic programming
Area of the hexagon#2013
बहुत आसान · Geometry
Lucky Number#2014
बहुत आसान · Implementation
Game XOR#2015
कठिन · Games · Math · Combinatorics
Determinant of the matrix#2017
आसान · Matrix
Minimal d-exponent#2018
मध्यम · Number theory · Brute force
Fibonacci sequence#2019
मध्यम · Hashing · Dynamic programming