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Recently added problems

Anton buys a piglet#20

Hard · Greedy algorithms · Binary Search · Constructive Algorithms · Number theory

Pasha is also against "tails"?#19

Easy · Sorting · Math

Bohdan against "tails"#18

Easy · Hashing

Sleepy Sasha is Trouble at the University#17

Very easy · Math

Coordinates#16

Very easy · Math

Rook#15

Very easy · Math

Trivial? Solve It!#14

Medium · Number theory · Math · Prefix Sums

Magic Knights#13

Medium · Combinatorics · Math

Add and Minimize#12

Medium · Greedy algorithms · Sorting

Cossack Vus and Friend at CP Olympiad#11

Easy · Implementation

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