ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   58 43460
6
5
25942 Ball sum   33 1145
12
13
30826 Bernoulli numbers   2 4
17
17
24998 PLAYING WITH BITS   28 535
14
13
17921 XOR   -14 3685
1
1
18294 Problem1   45
26314 Corn Headache   4 246
8
6
34620 Crying Series   1 14
1
6
27269 Cube Numbers   23 483
9
11
22403 Divisors of factorial   47 1095
15
14
27299 Find Log   1 68
1
1
25311 Candies   3 797
6
7
32445 COUNT JUMPS   2 54
6
1
25583 Easy Odd Sum   3 913
2
2
31 Fast Multiplication   35 3748
15
14
16272 Nanoworld   1 30
17
17
25008 New Currency Shopping   1 3
34
17
15708 Divisibility   8 3956
6
4
17104 Fun with Sequences (Act 3)   1 864
1
1
17126 Fun with Sequences (Act 4)   2 478
1
1
17481 Fun with Sequences (Act 5)   358
1
1
18011 Fun with Sequences (Act 6)   448
1
1
18012 Fun with Sequences (Act 7)   377
1
1
176 Sum of one-sequence   4 614
1
21
22455 SUM OF PRODUCT   27 793
19
20
235 Very Fast Multiplication   13 697
29
23

#simple-math

The problem involves but simple mathematical concepts like arithmetic operations

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