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Problems

Complexity
All Problems Very simple Simple Average Difficult Very difficult
simple-mathematics
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...
1
Simple problem
49935 / 55783
3
Match’s model
3709 / 17151
58
The Billiards
1101 / 1477
63
Anfisa and the flowers
6720 / 7952
67
Cheese for Anfisa - 2
3921 / 4408
109
Page numbering
3490 / 4792
111
Clocks
1491 / 2241
116
Long number (RU)
655 / 1151
117
Raft
1110 / 1377
119
Degree of two
1911 / 2531
127
Dollars in bank
2488 / 3368
132
Broken line (RU)
85 / 255
133
Square and points (RU)
6294 / 6995
140
Financial pyramid (RU)
866 / 1137
186
Egyptian symbols
571 / 761
219
Central heating
5813 / 6814
255
License Software
2046 / 2603
273
Modular Exponentiation
4415 / 5786
583
Airplane (RU)
161 / 580
933
The sum of digits of a two-digit number
8515 / 10606
935
Decomposition of three digit number
12055 / 13659
936
Cramer's Formula
2174 / 2723
937
Product of Array Except Self
4041 / 5652
942
Diagonals
3327 / 3679
1005
Matches for children are not toys!
927 / 1192