Our Patreons
Diamond Sponsors
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Reinardus Pradhitya
Gold Sponsors
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Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Browse Problems
Title | Total Submissions / Solving % | Total Users / Solving % | ||||
![]() |
842 - Crossword Puzzles | 362 |
27.62%
|
96 |
58.33%
|
|
![]() |
843 - Crypt Kicker | 22688 |
23.34%
|
4419 |
67.30%
|
|
![]() |
845 - Gas Station Numbers | 1898 |
26.13%
|
496 |
69.15%
|
|
![]() |
848 - Fmt | 5160 |
21.38%
|
1116 |
64.52%
|
|
![]() |
850 - Crypt Kicker II | 20406 |
22.69%
|
4388 |
71.35%
|
|
![]() |
851 - Maze | 2363 |
23.02%
|
287 |
53.66%
|
|
![]() |
10008 - What's Cryptanalysis? | 42066 |
57.38%
|
17515 |
93.91%
|
|
![]() |
10009 - All Roads Lead Where? | 15606 |
34.60%
|
4395 |
82.43%
|
|
![]() |
10010 - Where's Waldorf? | 45595 |
31.54%
|
11661 |
82.39%
|
|
![]() |
10011 - Where Can You Hide? | 4140 |
10.58%
|
594 |
40.24%
|
|
![]() |
10012 - How Big Is It? | 11112 |
30.18%
|
2607 |
69.97%
|
|
![]() |
10027 - Language Cardinality | 2500 |
13.64%
|
505 |
51.88%
|
|
![]() |
10028 - Demerit Points | 1542 |
24.51%
|
416 |
58.89%
|
|
![]() |
10029 - Edit Step Ladders | 14761 |
22.84%
|
2660 |
64.70%
|
|
![]() |
10031 - Saskatchewan | 1237 |
6.95%
|
265 |
24.15%
|
|
![]() |
10032 - Tug of War | 35462 |
14.12%
|
4933 |
45.45%
|
|
![]() |
10033 - Interpreter | 36930 |
24.82%
|
6644 |
77.66%
|
|
![]() |
10035 - Primary Arithmetic | 143137 |
29.48%
|
32182 |
87.21%
|
|
![]() |
10037 - Bridge | 26531 |
24.77%
|
5764 |
70.58%
|
|
![]() |
10082 - WERTYU | 108672 |
40.55%
|
30163 |
90.63%
|
|
![]() |
10084 - Hotter Colder | 2211 |
36.18%
|
571 |
75.31%
|
|
![]() |
10124 - Subway | 632 |
36.71%
|
280 |
70.00%
|
|
![]() |
10125 - Sumsets | 32413 |
24.84%
|
4584 |
79.34%
|
|
![]() |
10126 - Zipf's Law | 6030 |
23.57%
|
1389 |
60.69%
|
|
![]() |
10135 - Herding Frosh | 4230 |
10.71%
|
754 |
23.47%
|
|
![]() |
10136 - Chocolate Chip Cookies | 4238 |
27.47%
|
873 |
69.30%
|
|
![]() |
10137 - The Trip | 77256 |
22.48%
|
16244 |
69.16%
|
|
![]() |
10138 - CDVII | 8235 |
25.74%
|
1791 |
76.44%
|
|
![]() |
10139 - Factovisors | 39723 |
24.50%
|
7918 |
68.50%
|
|
![]() |
10141 - Request for Proposal | 29458 |
30.27%
|
7973 |
86.13%
|
|
![]() |
10142 - Australian Voting | 52924 |
24.42%
|
6553 |
70.99%
|
|
![]() |
10149 - Yahtzee | 5572 |
37.08%
|
1496 |
78.01%
|
|
![]() |
10150 - Doublets | 20600 |
24.17%
|
3568 |
72.90%
|
|
![]() |
10151 - Spaghetti | 398 |
11.56%
|
104 |
32.69%
|
|
![]() |
10152 - ShellSort | 31272 |
37.83%
|
5685 |
86.42%
|
|
![]() |
10153 - New Horizons | 561 |
11.59%
|
109 |
39.45%
|
|
![]() |
10154 - Weights and Measures | 22557 |
26.77%
|
4320 |
66.74%
|
|
![]() |
10202 - Pairsumonious Numbers | 4721 |
43.27%
|
1708 |
82.26%
|
|
![]() |
10203 - Snow Clearing | 3883 |
27.02%
|
1172 |
66.72%
|
|
![]() |
10204 - Adventures in Moving - Part V | 499 |
17.23%
|
158 |
45.57%
|
|
![]() |
10205 - Stack 'em Up | 18513 |
32.77%
|
5262 |
82.63%
|
|
![]() |
10224 - Return of the Jedi | 667 |
13.79%
|
148 |
43.92%
|
|
![]() |
10225 - Discrete Logging | 1535 |
53.62%
|
536 |
86.38%
|
|
![]() |
10226 - Hardwood Species | 55116 |
32.08%
|
11148 |
83.57%
|
|
![]() |
10227 - Forests | 6765 |
34.96%
|
2084 |
82.68%
|
|
![]() |
10228 - A Star not a Tree? | 6945 |
25.30%
|
1210 |
76.28%
|
|
![]() |
10257 - Dick and Jane | 2892 |
37.90%
|
1064 |
72.27%
|
|
![]() |
10259 - Hippity Hopscotch | 3794 |
36.43%
|
1082 |
80.78%
|
|
![]() |
10260 - Soundex | 21459 |
51.85%
|
9542 |
93.42%
|
|
![]() |
10261 - Ferry Loading | 34319 |
34.66%
|
3436 |
76.66%
|
|
![]() |
10278 - Fire Station | 16401 |
25.27%
|
2943 |
76.38%
|
|
![]() |
10279 - Mine Sweeper | 11012 |
27.57%
|
3106 |
75.85%
|
|
![]() |
10280 - Old Wine Into New Bottles | 1961 |
31.41%
|
457 |
68.93%
|
|
![]() |
10281 - Average Speed | 10532 |
47.12%
|
4514 |
89.43%
|
|
![]() |
10295 - Hay Points | 15598 |
66.91%
|
6092 |
96.16%
|
|
![]() |
10296 - Jogging Trails | 3413 |
38.32%
|
861 |
86.53%
|
|
![]() |
10297 - Beavergnaw | 5038 |
67.19%
|
2870 |
95.37%
|
|
![]() |
10298 - Power Strings | 29901 |
43.66%
|
8556 |
85.19%
|
|
![]() |
10299 - Relatives | 22977 |
32.54%
|
5266 |
79.04%
|
|
![]() |
10310 - Dog and Gopher | 21221 |
29.16%
|
5121 |
84.07%
|
|
![]() |
10315 - Poker Hands | 19818 |
28.13%
|
4831 |
80.65%
|
|
![]() |
10316 - Airline Hub | 2843 |
24.09%
|
634 |
73.34%
|
|
![]() |
10317 - Equating Equations | 2646 |
14.81%
|
521 |
36.47%
|
|
![]() |
10362 - Trains | 1340 |
16.94%
|
202 |
61.88%
|
|
![]() |
10365 - Blocks | 4364 |
57.88%
|
2084 |
93.43%
|
|
![]() |
10366 - Faucet Flow | 2043 |
29.91%
|
478 |
70.08%
|
|
![]() |
10367 - Equations | 1186 |
24.87%
|
327 |
74.31%
|
|
![]() |
10368 - Euclid's Game | 7543 |
37.03%
|
2622 |
78.76%
|
|
![]() |
10369 - Arctic Network | 20609 |
43.68%
|
5626 |
91.91%
|
|
![]() |
10370 - Above Average | 49393 |
54.61%
|
20877 |
95.23%
|
|
![]() |
10371 - Time Zones | 3582 |
34.45%
|
1022 |
86.99%
|
|
![]() |
10372 - Leaps Tall Buildings (in a single bound) | 680 |
46.32%
|
288 |
77.78%
|
|
![]() |
10373 - The Brick Stops Here | 1254 |
30.46%
|
274 |
74.82%
|
|
![]() |
10374 - Election | 6908 |
27.10%
|
1797 |
76.79%
|
|
![]() |
10375 - Choose and divide | 9779 |
49.66%
|
2515 |
83.94%
|
|
![]() |
10376 - Snakes | 616 |
22.40%
|
180 |
63.33%
|
|
![]() |
10377 - Maze Traversal | 8007 |
37.49%
|
2789 |
83.51%
|
|
![]() |
10379 - Pit Stop Strategy | 359 |
34.82%
|
181 |
56.35%
|
|
![]() |
10385 - Duathlon | 4772 |
30.85%
|
750 |
82.00%
|
|
![]() |
10387 - Billiard | 2406 |
67.91%
|
1334 |
95.35%
|
|
![]() |
10388 - Snap | 1698 |
24.68%
|
480 |
71.67%
|
|
![]() |
10389 - Subway | 4862 |
30.05%
|
966 |
80.02%
|
|
![]() |
10390 - Bean Counting | 1014 |
28.60%
|
369 |
72.36%
|
|
![]() |
10391 - Compound Words | 22189 |
41.05%
|
3724 |
86.95%
|
|
![]() |
10392 - Factoring Large Numbers | 10353 |
49.57%
|
3410 |
90.12%
|
|
![]() |
10397 - Connect the Campus | 18800 |
35.26%
|
3881 |
87.99%
|
|
![]() |
10476 - Spam or Not Spam | 648 |
32.10%
|
197 |
80.20%
|
|
![]() |
10511 - Councilling | 6732 |
25.52%
|
914 |
75.49%
|
|
![]() |
10526 - Intellectual Property | 972 |
29.32%
|
224 |
69.20%
|
|
![]() |
10528 - Major Scales | 3004 |
54.56%
|
1267 |
90.61%
|
|
![]() |
10530 - Guessing Game | 19175 |
37.35%
|
5742 |
90.47%
|
|
![]() |
10550 - Combination Lock | 35870 |
55.90%
|
17017 |
93.02%
|
|
![]() |
10552 - Genealogical Research | 708 |
25.99%
|
240 |
70.83%
|
|
![]() |
10553 - Treasure Map | 1272 |
41.43%
|
360 |
74.72%
|
|
![]() |
10554 - Calories from Fat | 1352 |
64.57%
|
755 |
94.70%
|
|
![]() |
10556 - Biometrics | 889 |
37.23%
|
324 |
77.47%
|
|
![]() |
10557 - XYZZY | 18476 |
24.97%
|
3153 |
79.00%
|
|
![]() |
10621 - Jack and Jill | 961 |
26.12%
|
217 |
70.97%
|
|
![]() |
10622 - Perfect P-th Powers | 20606 |
25.10%
|
3673 |
79.44%
|
|
![]() |
10638 - The Trip II | 571 |
17.16%
|
144 |
51.39%
|
<< Start < Prev 1 2 Next > End >> | ||
Display # | Results 1 - 100 of 139 |