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Problems

Complexity
All Problems Very simple Simple Average Difficult Very difficult
beginners
All Problems 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 dynamic-programming euclid-extended-algorithm Others...
1
Simple problem
39793 / 44582
407
Exchange
5051 / 5650
500
Repair
4030 / 4845
583
Airplane (RU)
139 / 477
803
Абзац
46 / 129
901
Number of operations
5446 / 6300
902
The level of educational achievements
12402 / 13296
903
First or last?
12079 / 13169
904
Increase by 2
8821 / 10274
905
What type of triangle?
10943 / 12081
906
Product of digits
14634 / 15349
907
The first is not greater for 2,5
5758 / 6698
908
Those that are divisible by 6
6528 / 7563
909
Number of words
5226 / 5828
910
The arithmetic mean of positive
6896 / 7862
911
Quadratic equation
4809 / 7041
912
Number of sentences
2957 / 4086
913
Use sub-program
2936 / 3239
914
Maximum of absolute values
5804 / 6812
915
Rectangular or not?
7856 / 8797
916
Interesting Product
2248 / 2819
917
Twice the minimum
5823 / 6300
918
Which quarter?
7912 / 9364
919
Number by 3
5173 / 5672
920
Use the function
3880 / 4313