المسائل

Amin and Emil play a game#9778

صعب · Data Structures · Implementation

God saves the man who saves himself!#9781

صعب · Trees · Greedy algorithms · Sorting

Old Huseyn#9783

سهل جدًا · Dynamic programming · Sorting

Omar plays a game#9792

سهل جدًا · Strings

Vigenere Cipher Encryption#9796

سهل جدًا · Implementation

Unique Encryption Keys#9797

سهل جدًا · Sorting · Data Structures

Daily Division#9870

صعب جدًا · Fenwick Tree · Binary Search · Divide and Conquer · Prefix Sums

Jurassic Jigsaw#9876

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

A Prize No One Can Win#9878

سهل جدًا · Sorting

Birthday Boy#9879

متوسط · Sorting · Implementation

Cardboard Container#9880

سهل جدًا · Math · Brute force

Driver Disagreement#9881

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

Entirely Unsorted Sequences#9882

صعب · Combinatorics · Dynamic programming · Sorting · Number theory

Financial Planning#9883

صعب · Greedy algorithms · Sorting · Binary Search

Harry the Hamster#9885

متوسط · Graphs · Shortest paths

Product of differences#9889

سهل · Math · Brute force

Balls and boxes#9890

سهل جدًا · Combinatorics

Odd sum#9891

سهل جدًا · Implementation

C0n + ... + Cnn#9892

سهل جدًا · Bitwise Operations

Matrix: sum of indexes#9893

متوسط · Implementation

Sum of rows#9894

سهل جدًا · Prefix Sums

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