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
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
|
400 - Unix ls | 32079 |
40.84%
|
6651 |
87.31%
|
|
|
|
401 - Palindromes | 117084 |
28.28%
|
22363 |
82.25%
|
|
|
|
402 - M*A*S*H | 12392 |
19.49%
|
3056 |
48.72%
|
|
|
|
403 - Postscript | 3421 |
22.54%
|
1136 |
58.54%
|
|
|
|
404 - Radar Scopes | 1217 |
13.23%
|
370 |
35.95%
|
|
|
|
405 - Message Routing | 1324 |
34.74%
|
536 |
74.07%
|
|
|
|
406 - Prime Cuts | 59489 |
27.41%
|
12934 |
74.76%
|
|
|
|
407 - Gears on a Board | 1493 |
16.61%
|
400 |
50.50%
|
|
|
|
408 - Uniform Generator | 36400 |
32.81%
|
10590 |
74.31%
|
|
|
|
409 - Excuses, Excuses! | 19249 |
33.11%
|
5257 |
83.03%
|
|
|
|
410 - Station Balance | 16302 |
25.87%
|
3512 |
70.59%
|
|
|
|
411 - Centipede Collisions | 803 |
31.13%
|
353 |
63.74%
|
|
|
|
412 - Pi | 29852 |
38.69%
|
9163 |
84.79%
|
|
|
|
413 - Up and Down Sequences | 4194 |
46.88%
|
2064 |
80.52%
|
|
|
|
414 - Machined Surfaces | 33318 |
42.16%
|
10977 |
92.11%
|
|
|
|
415 - Sunrise | 1128 |
45.21%
|
359 |
71.31%
|
|
|
|
416 - LED Test | 4860 |
38.17%
|
1813 |
84.39%
|
|
|
|
417 - Word Index | 17380 |
66.99%
|
7756 |
95.27%
|
|
|
|
418 - Molecules | 1720 |
55.58%
|
626 |
87.06%
|
|
|
|
419 - Matching Meetings | 918 |
24.84%
|
301 |
63.46%
|
|
|
|
420 - Supercomputer Selection, The Sequel | 289 |
49.48%
|
178 |
70.79%
|
|
|
|
421 - Polygonal Puzzle | 519 |
25.24%
|
204 |
54.41%
|
|
|
|
422 - Word-Search Wonder | 5601 |
53.29%
|
2676 |
90.28%
|
|
|
|
423 - MPI Maelstrom | 10725 |
51.85%
|
3762 |
92.42%
|
|
|
|
424 - Integer Inquiry | 44617 |
43.77%
|
15527 |
88.83%
|
|
|
|
425 - Enigmatic Encryption | 1523 |
30.86%
|
363 |
74.38%
|
|
|
|
426 - Fifth Bank of Swamp County | 2313 |
19.28%
|
615 |
45.69%
|
|
|
|
427 - FlatLand Piano Movers | 1446 |
44.19%
|
587 |
80.58%
|
|
|
|
428 - Swamp County Roofs | 866 |
44.80%
|
430 |
77.67%
|
|
|
|
429 - Word Transformation | 25359 |
31.06%
|
5763 |
80.70%
|
|
|
|
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.) | 1907 |
36.08%
|
673 |
76.23%
|
|
|
|
434 - Matty's Blocks | 3361 |
41.92%
|
1294 |
81.22%
|
|
|
|
435 - Block Voting | 4455 |
51.49%
|
1814 |
87.16%
|
|
|
|
436 - Arbitrage (II) | 5920 |
45.79%
|
2055 |
88.56%
|
|
|
|
437 - The Tower of Babylon | 21822 |
58.02%
|
6074 |
93.25%
|
|
|
|
438 - The Circumference of the Circle | 15100 |
67.16%
|
7876 |
94.69%
|
|
|
|
439 - Knight Moves | 45127 |
57.77%
|
12975 |
94.07%
|
|
|
|
440 - Eeny Meeny Moo | 10839 |
69.29%
|
5355 |
94.27%
|
|
|
|
441 - Lotto | 40164 |
42.94%
|
12922 |
82.97%
|
|
|
|
442 - Matrix Chain Multiplication | 19113 |
64.93%
|
6172 |
94.43%
|
|
|
|
443 - Humble Numbers | 19098 |
43.83%
|
6742 |
89.29%
|
|
|
|
444 - Encoder and Decoder | 25630 |
31.08%
|
7005 |
80.23%
|
|
|
|
445 - Marvelous Mazes | 41526 |
41.45%
|
12698 |
87.53%
|
|
|
|
446 - Kibbles "n" Bits "n" Bits "n" Bits | 16375 |
48.97%
|
6138 |
93.35%
|
|
|
|
447 - Population Explosion | 3528 |
23.27%
|
1194 |
54.61%
|
|
|
|
448 - OOPS! | 5330 |
47.82%
|
1421 |
81.91%
|
|
|
|
449 - Majoring in Scales | 2069 |
28.85%
|
549 |
51.37%
|
|
|
|
450 - Little Black Book | 13470 |
30.62%
|
2324 |
83.39%
|
|
|
|
451 - Poker Solitaire Evaluator | 2066 |
22.99%
|
487 |
67.35%
|
|
|
|
452 - Project Scheduling | 6812 |
33.57%
|
1829 |
84.36%
|
|
|
|
453 - Intersecting Circles | 9608 |
8.60%
|
1105 |
35.93%
|
|
|
|
454 - Anagrams | 14825 |
20.69%
|
3384 |
68.26%
|
|
|
|
455 - Periodic Strings | 120323 |
23.98%
|
15197 |
73.05%
|
|
|
|
456 - Robotic Stacker | 350 |
42.86%
|
174 |
50.57%
|
|
|
|
457 - Linear Cellular Automata | 13262 |
37.09%
|
3816 |
85.46%
|
|
|
|
458 - The Decoder | 95221 |
46.32%
|
33089 |
92.44%
|
|
|
|
459 - Graph Connectivity | 60064 |
28.08%
|
11018 |
79.15%
|
|
|
|
460 - Overlapping Rectangles | 14422 |
27.51%
|
3786 |
73.32%
|
|
|
|
461 - The Reservation Maker | 117 |
2.56%
|
56 |
5.36%
|
|
|
|
462 - Bridge Hand Evaluator | 10200 |
33.53%
|
3133 |
83.37%
|
|
|
|
463 - Polynomial Factorization | 592 |
13.68%
|
88 |
35.23%
|
|
|
|
464 - Sentence/Phrase Generator | 1865 |
32.17%
|
525 |
72.19%
|
|
|
|
465 - Overflow | 35975 |
21.69%
|
6310 |
69.32%
|
|
|
|
466 - Mirror, Mirror | 4610 |
56.03%
|
2160 |
90.79%
|
|
|
|
467 - Synching Signals | 3879 |
44.52%
|
1158 |
89.21%
|
|
|
|
468 - Key to Success | 5373 |
22.95%
|
1626 |
58.00%
|
|
|
|
469 - Wetlands of Florida | 27556 |
27.98%
|
5943 |
77.79%
|
|
|
|
470 - Nasty Virus | 190 |
2.11%
|
57 |
7.02%
|
|
|
|
471 - Magic Numbers | 10003 |
31.33%
|
2704 |
74.63%
|
|
|
|
472 - Simultaneous Equations | 440 |
11.59%
|
70 |
41.43%
|
|
|
|
473 - Raucous Rockers | 5322 |
27.49%
|
952 |
75.42%
|
|
|
|
474 - Heads / Tails Probability | 12032 |
38.41%
|
2785 |
83.91%
|
|
|
|
475 - Wild Thing | 1278 |
21.44%
|
232 |
55.60%
|
|
|
|
476 - Points in Figures: Rectangles | 34174 |
41.05%
|
9787 |
91.56%
|
|
|
|
477 - Points in Figures: Rectangles and Circles | 15805 |
59.04%
|
6852 |
94.73%
|
|
|
|
478 - Points in Figures: Rectangles, Circles, Triangles | 15450 |
42.81%
|
4616 |
89.90%
|
|
|
|
479 - Irrigation Flow Rates | 145 |
13.79%
|
88 |
17.05%
|
|
|
|
480 - Tempus Fugit | 169 |
20.71%
|
68 |
23.53%
|
|
|
|
481 - What Goes Up | 37869 |
27.54%
|
8231 |
74.30%
|
|
|
|
482 - Permutation Arrays | 40412 |
25.00%
|
8588 |
76.93%
|
|
|
|
483 - Word Scramble | 61504 |
43.21%
|
19754 |
87.63%
|
|
|
|
484 - The Department of Redundancy Department | 47945 |
46.01%
|
11996 |
90.23%
|
|
|
|
485 - Pascal's Triangle of Death | 13701 |
31.82%
|
4007 |
65.39%
|
|
|
|
486 - English-Number Translator | 9613 |
39.00%
|
2750 |
76.29%
|
|
|
|
487 - Boggle Blitz | 5124 |
38.76%
|
1189 |
65.69%
|
|
|
|
488 - Triangle Wave | 122573 |
24.05%
|
25175 |
73.07%
|
|
|
|
489 - Hangman Judge | 64004 |
32.19%
|
13820 |
75.83%
|
|
|
|
490 - Rotating Sentences | 64221 |
33.03%
|
15346 |
83.01%
|
|
|
|
491 - Tile Topology | 962 |
25.78%
|
333 |
60.36%
|
|
|
|
492 - Pig-Latin | 57250 |
24.16%
|
9764 |
77.62%
|
|
|
|
493 - Rational Spiral | 2729 |
38.15%
|
726 |
80.72%
|
|
|
|
494 - Kindergarten Counting Game | 97810 |
39.49%
|
30248 |
88.63%
|
|
|
|
495 - Fibonacci Freeze | 74426 |
27.32%
|
16228 |
70.09%
|
|
|
|
496 - Simply Subsets | 13513 |
48.42%
|
4634 |
88.65%
|
|
|
|
497 - Strategic Defense Initiative | 30913 |
24.32%
|
5872 |
73.54%
|
|
|
|
498 - Polly the Polynomial | 14831 |
39.53%
|
4722 |
78.02%
|
|
|
|
499 - What's The Frequency, Kenneth? | 23541 |
58.51%
|
11475 |
94.11%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |


