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Problems

Complexity
All Problems Very simple Simple Average Difficult Very difficult
combinatorics
All Problems ---topological-sort- ---traveling-salesman-problem- -three- 2-sat algorithms-on-strings articulation-point backtracking beginners bellman-ford-algorithm binary-search bitwise-operators breadth-first-search bridges calculation-system catalan-numbers clique combinatorics connected-components depth-first-search dijkstra-algorithm Others...
17
Gardener-painter
3587 / 4616
65
The Candies
125 / 528
124
Square
2594 / 4301
201
Circles - 2 (RU)
1014 / 1437
236
Triomino
346 / 529
390
Anagrams
1160 / 1619
398
Cake for Sergei
681 / 1046
399
The consequences of influenza in Prostokvashino
514 / 697
400
Путешествия гномов
54 / 102
402
Complete Tree Labeling
18 / 50
448
Chords
17 / 68
566
Letter of postman Pechkin
384 / 438
843
Permutation (2)
453 / 602
1286
Tuck-shop
6627 / 6894
1287
Tennis competitions
2351 / 2719
1288
n-digit numbers
814 / 1327
1289
Lunch
3600 / 4042
1290
License plate
655 / 950
1325
Vas`kin track
668 / 782
1326
Play hockey this...
1741 / 2168
1327
Rooks on a chessboard
1065 / 1427
1328
Drawings on a piece of paper in the box
282 / 441
1329
Partition of the set
10 / 32
1440
Beautyful squares
12 / 29
1478
Rectangle
15 / 102