Browse Problems 
Our Patreons
Diamond Sponsors
Steven & Felix Halim
Reinardus Pradhitya
Gold Sponsors
--- YOUR NAME HERE ----
Silver Sponsors
--- YOUR NAME HERE ----
Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Contribute
Bitcoin:
1ojudgeapLUjJcnUm
ze67a4w3TJ6WnPxo
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
400 - Unix ls | 32117 |
40.85%
|
6658 |
87.31%
|
|
|
401 - Palindromes | 117305 |
28.29%
|
22385 |
82.27%
|
|
|
|
402 - M*A*S*H | 12395 |
19.49%
|
3057 |
48.74%
|
|
|
|
403 - Postscript | 3421 |
22.54%
|
1136 |
58.54%
|
|
|
|
404 - Radar Scopes | 1217 |
13.23%
|
370 |
35.95%
|
|
|
|
405 - Message Routing | 1326 |
34.77%
|
536 |
74.07%
|
|
|
|
406 - Prime Cuts | 59727 |
27.46%
|
12947 |
74.77%
|
|
|
|
407 - Gears on a Board | 1495 |
16.66%
|
400 |
50.50%
|
|
|
|
408 - Uniform Generator | 36504 |
32.83%
|
10612 |
74.36%
|
|
|
|
409 - Excuses, Excuses! | 19271 |
33.14%
|
5263 |
83.05%
|
|
|
|
410 - Station Balance | 16385 |
25.90%
|
3524 |
70.54%
|
|
|
|
411 - Centipede Collisions | 803 |
31.13%
|
353 |
63.74%
|
|
|
|
412 - Pi | 29904 |
38.70%
|
9180 |
84.80%
|
|
|
|
413 - Up and Down Sequences | 4196 |
46.90%
|
2065 |
80.53%
|
|
|
|
414 - Machined Surfaces | 33379 |
42.16%
|
10993 |
92.10%
|
|
|
|
415 - Sunrise | 1128 |
45.21%
|
359 |
71.31%
|
|
|
|
416 - LED Test | 4861 |
38.18%
|
1813 |
84.39%
|
|
|
|
417 - Word Index | 17423 |
67.01%
|
7768 |
95.26%
|
|
|
|
418 - Molecules | 1720 |
55.58%
|
626 |
87.06%
|
|
|
|
419 - Matching Meetings | 919 |
24.92%
|
301 |
63.46%
|
|
|
|
420 - Supercomputer Selection, The Sequel | 289 |
49.48%
|
178 |
70.79%
|
|
|
|
421 - Polygonal Puzzle | 520 |
25.38%
|
204 |
54.41%
|
|
|
|
422 - Word-Search Wonder | 5605 |
53.29%
|
2677 |
90.29%
|
|
|
|
423 - MPI Maelstrom | 10744 |
51.91%
|
3769 |
92.44%
|
|
|
|
424 - Integer Inquiry | 44712 |
43.83%
|
15530 |
88.83%
|
|
|
|
425 - Enigmatic Encryption | 1524 |
30.91%
|
363 |
74.38%
|
|
|
|
426 - Fifth Bank of Swamp County | 2313 |
19.28%
|
615 |
45.69%
|
|
|
|
427 - FlatLand Piano Movers | 1455 |
44.19%
|
587 |
80.58%
|
|
|
|
428 - Swamp County Roofs | 873 |
44.56%
|
430 |
77.67%
|
|
|
|
429 - Word Transformation | 25404 |
31.10%
|
5767 |
80.72%
|
|
|
|
430 - Swamp County Supervisors | 1345 |
27.14%
|
357 |
57.42%
|
|
|
|
431 - Trial of the Millennium | 2604 |
13.29%
|
390 |
46.41%
|
|
|
|
432 - Modern Art | 1086 |
39.69%
|
384 |
69.27%
|
|
|
|
433 - Bank (Not Quite O.C.R.) | 1908 |
36.11%
|
673 |
76.23%
|
|
|
|
434 - Matty's Blocks | 3362 |
41.94%
|
1294 |
81.22%
|
|
|
|
435 - Block Voting | 4456 |
51.50%
|
1815 |
87.16%
|
|
|
|
436 - Arbitrage (II) | 5929 |
45.83%
|
2057 |
88.58%
|
|
|
|
437 - The Tower of Babylon | 21949 |
58.09%
|
6085 |
93.25%
|
|
|
|
438 - The Circumference of the Circle | 15110 |
67.17%
|
7881 |
94.70%
|
|
|
|
439 - Knight Moves | 45483 |
57.84%
|
13001 |
94.09%
|
|
|
|
440 - Eeny Meeny Moo | 10850 |
69.28%
|
5359 |
94.27%
|
|
|
|
441 - Lotto | 40599 |
43.06%
|
12956 |
83.00%
|
|
|
|
442 - Matrix Chain Multiplication | 19165 |
64.96%
|
6183 |
94.44%
|
|
|
|
443 - Humble Numbers | 19114 |
43.83%
|
6746 |
89.30%
|
|
|
|
444 - Encoder and Decoder | 25634 |
31.08%
|
7007 |
80.22%
|
|
|
|
445 - Marvelous Mazes | 41548 |
41.44%
|
12704 |
87.52%
|
|
|
|
446 - Kibbles "n" Bits "n" Bits "n" Bits | 16390 |
48.98%
|
6144 |
93.36%
|
|
|
|
447 - Population Explosion | 3537 |
23.35%
|
1194 |
54.61%
|
|
|
|
448 - OOPS! | 5333 |
47.80%
|
1421 |
81.91%
|
|
|
|
449 - Majoring in Scales | 2074 |
28.83%
|
550 |
51.45%
|
|
|
|
450 - Little Black Book | 13472 |
30.63%
|
2325 |
83.40%
|
|
|
|
451 - Poker Solitaire Evaluator | 2067 |
23.03%
|
487 |
67.35%
|
|
|
|
452 - Project Scheduling | 6834 |
33.60%
|
1835 |
84.36%
|
|
|
|
453 - Intersecting Circles | 9625 |
8.59%
|
1107 |
35.86%
|
|
|
|
454 - Anagrams | 14838 |
20.70%
|
3387 |
68.29%
|
|
|
|
455 - Periodic Strings | 120828 |
24.01%
|
15235 |
73.10%
|
|
|
|
456 - Robotic Stacker | 351 |
43.02%
|
174 |
50.57%
|
|
|
|
457 - Linear Cellular Automata | 13268 |
37.11%
|
3818 |
85.46%
|
|
|
|
458 - The Decoder | 95290 |
46.31%
|
33098 |
92.44%
|
|
|
|
459 - Graph Connectivity | 60725 |
28.27%
|
11049 |
79.19%
|
|
|
|
460 - Overlapping Rectangles | 14441 |
27.57%
|
3791 |
73.36%
|
|
|
|
461 - The Reservation Maker | 126 |
2.38%
|
56 |
5.36%
|
|
|
|
462 - Bridge Hand Evaluator | 10227 |
33.56%
|
3140 |
83.41%
|
|
|
|
463 - Polynomial Factorization | 593 |
13.83%
|
88 |
36.36%
|
|
|
|
464 - Sentence/Phrase Generator | 1866 |
32.21%
|
525 |
72.19%
|
|
|
|
465 - Overflow | 35982 |
21.70%
|
6312 |
69.33%
|
|
|
|
466 - Mirror, Mirror | 4808 |
56.07%
|
2162 |
90.80%
|
|
|
|
467 - Synching Signals | 3881 |
44.55%
|
1158 |
89.21%
|
|
|
|
468 - Key to Success | 5375 |
22.98%
|
1626 |
58.00%
|
|
|
|
469 - Wetlands of Florida | 27589 |
28.00%
|
5950 |
77.78%
|
|
|
|
470 - Nasty Virus | 283 |
1.77%
|
64 |
7.81%
|
|
|
|
471 - Magic Numbers | 10054 |
31.33%
|
2712 |
74.67%
|
|
|
|
472 - Simultaneous Equations | 440 |
11.59%
|
70 |
41.43%
|
|
|
|
473 - Raucous Rockers | 5332 |
27.49%
|
954 |
75.47%
|
|
|
|
474 - Heads / Tails Probability | 12059 |
38.34%
|
2787 |
83.89%
|
|
|
|
475 - Wild Thing | 1278 |
21.44%
|
232 |
55.60%
|
|
|
|
476 - Points in Figures: Rectangles | 34220 |
41.08%
|
9798 |
91.57%
|
|
|
|
477 - Points in Figures: Rectangles and Circles | 15812 |
59.06%
|
6854 |
94.73%
|
|
|
|
478 - Points in Figures: Rectangles, Circles, Triangles | 15463 |
42.84%
|
4622 |
89.92%
|
|
|
|
479 - Irrigation Flow Rates | 146 |
14.38%
|
89 |
17.98%
|
|
|
|
480 - Tempus Fugit | 172 |
20.93%
|
68 |
23.53%
|
|
|
|
481 - What Goes Up | 37982 |
27.57%
|
8249 |
74.31%
|
|
|
|
482 - Permutation Arrays | 40484 |
25.03%
|
8598 |
76.94%
|
|
|
|
483 - Word Scramble | 61558 |
43.21%
|
19770 |
87.63%
|
|
|
|
484 - The Department of Redundancy Department | 48279 |
46.20%
|
12027 |
90.24%
|
|
|
|
485 - Pascal's Triangle of Death | 13703 |
31.83%
|
4007 |
65.39%
|
|
|
|
486 - English-Number Translator | 9614 |
39.01%
|
2750 |
76.29%
|
|
|
|
487 - Boggle Blitz | 5124 |
38.76%
|
1189 |
65.69%
|
|
|
|
488 - Triangle Wave | 122678 |
24.06%
|
25193 |
73.09%
|
|
|
|
489 - Hangman Judge | 64137 |
32.21%
|
13838 |
75.86%
|
|
|
|
490 - Rotating Sentences | 64580 |
33.13%
|
15393 |
83.05%
|
|
|
|
491 - Tile Topology | 962 |
25.78%
|
333 |
60.36%
|
|
|
|
492 - Pig-Latin | 57335 |
24.16%
|
9768 |
77.62%
|
|
|
|
493 - Rational Spiral | 2729 |
38.15%
|
726 |
80.72%
|
|
|
|
494 - Kindergarten Counting Game | 98058 |
39.56%
|
30302 |
88.64%
|
|
|
|
495 - Fibonacci Freeze | 74619 |
27.34%
|
16233 |
70.11%
|
|
|
|
496 - Simply Subsets | 13537 |
48.50%
|
4642 |
88.67%
|
|
|
|
497 - Strategic Defense Initiative | 30963 |
24.30%
|
5876 |
73.52%
|
|
|
|
498 - Polly the Polynomial | 14883 |
39.58%
|
4737 |
78.05%
|
|
|
|
499 - What's The Frequency, Kenneth? | 23568 |
58.52%
|
11489 |
94.12%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |