Προβλήματα

Amin and Emil play a game#9778

Δύσκολο · Data Structures · Implementation

God saves the man who saves himself!#9781

Δύσκολο · Trees · Greedy algorithms · Sorting

Old Huseyn#9783

Πολύ εύκολο · Dynamic programming · Sorting

Omar plays a game#9792

Πολύ εύκολο · Strings

Vigenere Cipher Encryption#9796

Πολύ εύκολο · Implementation

Unique Encryption Keys#9797

Πολύ εύκολο · Sorting · Data Structures

Daily Division#9870

Πολύ δύσκολο · Fenwick Tree · Binary Search · Divide and Conquer · Prefix Sums

Jurassic Jigsaw#9876

Μέτριο · Graphs · Greedy algorithms · Sorting · Disjoint set union

A Prize No One Can Win#9878

Πολύ εύκολο · Sorting

Birthday Boy#9879

Μέτριο · Sorting · Implementation

Cardboard Container#9880

Πολύ εύκολο · Math · Brute force

Driver Disagreement#9881

Δύσκολο · Breadth-first Search · Disjoint set union · Graphs

Entirely Unsorted Sequences#9882

Δύσκολο · Combinatorics · Dynamic programming · Sorting · Number theory

Financial Planning#9883

Δύσκολο · Greedy algorithms · Sorting · Binary Search

Harry the Hamster#9885

Μέτριο · Graphs · Shortest paths

Product of differences#9889

Εύκολο · Math · Brute force

Balls and boxes#9890

Πολύ εύκολο · Combinatorics

Odd sum#9891

Πολύ εύκολο · Implementation

C0n + ... + Cnn#9892

Πολύ εύκολο · Bitwise Operations

Matrix: sum of indexes#9893

Μέτριο · Implementation

Sum of rows#9894

Πολύ εύκολο · Prefix Sums

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