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Problems

Complexity
All Problems Very simple Simple Average Difficult Very difficult
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All Problems ---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 diophantine-equations Others...
6
The vouchers
1512 / 2445
122
Mountain routes
1524 / 1816
128
Lucky tickets
4907 / 5522
831
Expression
400 / 571
843
Permutation of letters
643 / 834
849
Decomposition into terms
241 / 285
855
Brackets (2)
206 / 277
891
Покупка цветов
304 / 465
1145
Unfair Division
54 / 87
1405
Sticks
184 / 232
1444
ABC-ребусы
179 / 189
1488
Шахматная головоломка
216 / 251
1540
23 out of 5
620 / 766
1613
Two numbers and the four actions
204 / 330
2069
Vasyas tickets
8 / 34
2169
Permutations
1159 / 1286
2509
The post office
235 / 290
2712
The problem of Queens
347 / 428
2764
Annealing peaceful queens!
146 / 219
2893
Про спрайт
83 / 130
3603
Взвешивание
522 / 775
3606
А поговорить?
558 / 637
5125
Pen Counts
113 / 149
6880
Произведения
8 / 14
7311
Insert Parentheses
1059 / 1331