Problemat

Sphere#1969

Shumë e vështirë · Graphs · Shortest paths

David Copperfield is resting#1970

Shumë e lehtë · Implementation

Fateful Chess Puzzle#1971

Shumë e lehtë · Combinatorics

Splitting#1972

Mesatare · Number theory

Rollback#1973

Shumë e lehtë · Segment Tree · Prefix Sums · Queries

Random Acts of Kindness Day#1974

Shumë e lehtë · Math · Implementation

The tightly bound son of the mountains#1975

E vështirë · Graphs · Shortest paths

Programming is an art!#1976

Shumë e vështirë · Greedy algorithms

Organizational Problems: A Topic for a Dissertation?#1978

E lehtë · Graphs · Graph network flows

Railroad#1979

Mesatare · Graphs · Depth-first Search · Graph matchings

Shadow Protocol#1980

Shumë e lehtë · Chinese remainder theorem

Mushroom#1981

Shumë e lehtë · Dynamic programming

Highways#1982

Mesatare · Graphs

Ricefield#1983

Shumë e lehtë · Implementation

Fractions#1984

E lehtë · Math · Combinatorics

Primes Anna#1985

Mesatare · Number theory · Implementation

Anna and the palindrome#1986

Mesatare · Strings · Brute force

The Next Permutation#1987

Shumë e lehtë · Implementation

The largest increasing subsequence#1988

E lehtë · Dynamic programming

Maximum matching#1989

Mesatare · Graph matchings · Graphs · Breadth-first Search · Depth-first Search

Domino 2#1990

Shumë e lehtë · Graphs

Maximum flow#1991

Shumë e lehtë · Graphs

Dividing the graph#1992

E lehtë · Graphs

Weighing#1993

Shumë e lehtë · Math

1926-1950 nga 9226