762
|
Problems Collection (Volume 1)
|
1
|
154 |
47.58 |
|
851
|
Tickets lottery
|
1
|
453 |
47.44 |
|
1023
|
Arranging Dominoes
|
1
|
668 |
41.05 |
|
1279
|
Run Length Decoding
|
|
85 |
37.42 |
|
1392
|
Sum of Factors
|
2
|
337 |
13.28 |
|
1393
|
Ping Pong Probability
|
2
|
239 |
52.04 |
|
1397
|
Put Them on a Circle
|
1
|
117 |
33.17 |
|
1417
|
University Employees
|
-1
|
2471 |
65.81 |
|
1729
|
Guess the Number
|
3
|
988 |
18.98 |
|
2523
|
Mispelling
|
3
|
7804 |
42.59 |
|
3081
|
Look and Say
|
1
|
274 |
56.22 |
|
3313
|
Software Bugs
|
|
139 |
67.21 |
|
3371
|
Fast Power
|
2
|
554 |
31.06 |
|
3386
|
Contest System Quality Assurance Tester
|
3
|
1771 |
39.60 |
|
3727
|
Lucky Number
|
3
|
775 |
65.89 |
|
4001
|
JACKPOT
|
1
|
218 |
45.95 |
|
4190
|
A plus B
|
2
|
95 |
9.40 |
|
4500
|
Helms Deep
|
|
120 |
39.75 |
|
4554
|
Relax! It is just a game
|
-8
|
3869 |
48.45 |
|
4906
|
Pythagorean Triples
|
1
|
1002 |
60.26 |
|
4907
|
Most Common Letter
|
1
|
222 |
41.22 |
|
5313
|
Root of the Problem
|
|
184 |
50.24 |
|
5871
|
Grid
|
|
75 |
20.45 |
|
5872
|
Anagram
|
|
878 |
44.87 |
|
5874
|
Square
|
-1
|
45 |
21.19 |
|
6528
|
Circle Counting
|
|
47 |
49.02 |
|
7207
|
Alchemy
|
1
|
2232 |
39.88 |
|
7236
|
The next odd number
|
1
|
468 |
47.60 |
|
7237
|
Biggest !
|
1
|
447 |
15.96 |
|
7414
|
Thank you Chief ;)
|
|
225 |
46.05 |
|
7431
|
Vikram & Betaal
|
1
|
52 |
68.48 |
|
7775
|
Explicit Formula
|
|
1712 |
57.09 |
|
7858
|
Upper Right King (Easy)
|
1
|
75 |
35.81 |
|
8060
|
Cookies Piles
|
4
|
4069 |
70.97 |
|
8144
|
Game of 3 cards
|
|
42 |
40.95 |
|
8147
|
Waiting Queue
|
1
|
93 |
29.83 |
|
8232
|
Fun With Primes
|
2
|
86 |
39.46 |
|
8354
|
Birthday cake
|
|
80 |
44.81 |
|
8360
|
Prime After N
|
-1
|
305 |
50.00 |
|
8492
|
Intersecting Circles
|
|
133 |
29.34 |
|
8544
|
Lexicographical ordering
|
2
|
120 |
50.00 |
|
8621
|
Prime Permutations (easy)
|
1
|
126 |
57.24 |
|
8792
|
N - DIGIT NUMBERS
|
|
262 |
35.71 |
|
8847
|
Google is Feeling Lucky
|
|
1717 |
53.30 |
|
8900
|
LUCKYNINE
|
2
|
418 |
32.02 |
|
8903
|
DRAWING IT
|
1
|
65 |
50.21 |
|
9108
|
SHAKE
|
|
112 |
38.03 |
|
9369
|
Progression
|
1
|
676 |
55.69 |
|
9500
|
Bit counts
|
|
1604 |
63.73 |
|
9536
|
Calculating very big numbers very quickly
|
1
|
147 |
26.26 |
|