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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
43470 / 48624
407
Exchange
5534 / 6173
500
Repair
4453 / 5326
583
Airplane (RU)
152 / 522
803
Абзац
48 / 133
901
Number of operations
6319 / 7248
902
The level of educational achievements
14212 / 15298
903
First or last?
13832 / 15141
904
Increase by 2
10040 / 11593
905
What type of triangle?
12474 / 13757
906
Product of digits
16514 / 17354
907
The first is not greater for 2,5
6481 / 7504
908
Those that are divisible by 6
7267 / 8375
909
Number of words
6275 / 6942
910
The arithmetic mean of positive
7956 / 9048
911
Quadratic equation
5364 / 7765
912
Number of sentences
3430 / 4685
913
Use sub-program
3260 / 3611
914
Maximum of absolute values
6909 / 7994
915
Rectangular or not?
8692 / 9754
916
Interesting Product
2514 / 3124
917
Twice the minimum
6790 / 7358
918
Which quarter?
8572 / 10104
919
Number by 3
5834 / 6401
920
Use the function
4605 / 5102