e-olymp
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Problems

Average
All Problems Very simple Simple Average Difficult Very difficult
Classification
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...
4
Two circles
7927 / 12845
6
The vouchers
1250 / 1971
8
Matches
4172 / 6235
9
N-digit numbers
2955 / 4468
11
Big accuracy
3684 / 5918
12
Injured Picture
774 / 1206
13
Spider and Fly
1467 / 2677
16
Dragon
1604 / 2543
20
How many times to repeat?
4916 / 7330
22
"Mirror prime" numbers
2579 / 4644
25
Paint3D
547 / 818
33
The favourite numbers of Santa Claus
1643 / 2528
40
Pipeline (RU)
245 / 440
41
Command of the Mayor
415 / 628
44
The number of ones
2231 / 3298
45
The Fuel
143 / 204
48
The Red and Blue Squares
402 / 591
49
The Smart Cat
676 / 1030
55
The presents to the 8th of March
709 / 1133
62
The Factorial
1715 / 3379
64
The Timetable from "Diez-Product"
131 / 187
84
Transfer
34 / 59
88
LeChuck’s Revenge
66 / 107
93
Truck Driving
57 / 99
94
Primes’ Problem
36 / 63