ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   52 42458
7
4
25942 Ball sum   32 1102
12
12
30826 Bernoulli numbers   2 3
17
17
24998 PLAYING WITH BITS   26 515
14
13
17921 XOR   -11 3524
1
1
18294 Problem1   45
26314 Corn Headache   4 233
7
5
27269 Cube Numbers   23 463
9
11
22403 Divisors of factorial   44 1053
15
15
27299 Find Log   1 61
1
1
25311 Candies   3 760
6
7
32445 COUNT JUMPS   3 52
6
1
25583 Easy Odd Sum   3 888
2
2
31 Fast Multiplication   31 3580
14
14
16272 Nanoworld   28
25008 New Currency Shopping   1 3
34
17
15708 Divisibility   7 3768
6
4
17104 Fun with Sequences (Act 3)   1 824
1
1
17126 Fun with Sequences (Act 4)   2 451
1
1
17481 Fun with Sequences (Act 5)   344
1
1
18011 Fun with Sequences (Act 6)   430
1
1
18012 Fun with Sequences (Act 7)   362
1
1
176 Sum of one-sequence   4 613
1
23
22455 SUM OF PRODUCT   27 782
19
20
235 Very Fast Multiplication   11 648
30
22

#simple-math

The problem involves but simple mathematical concepts like arithmetic operations

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