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 % | ||||
|
500 - Table | 2712 |
10.51%
|
607 |
30.97%
|
|
|
|
501 - Black Box | 18772 |
25.15%
|
3093 |
65.15%
|
|
|
502 - DEL command | 2101 |
12.23%
|
441 |
41.50%
|
|
|
|
503 - Parallelepiped walk | 954 |
17.92%
|
305 |
42.95%
|
|
|
|
504 - Random number | 1009 |
7.53%
|
217 |
25.81%
|
|
|
|
505 - Moscow time | 1868 |
19.06%
|
494 |
61.54%
|
|
|
|
506 - System Dependencies | 4498 |
27.72%
|
613 |
73.41%
|
|
|
|
507 - Jill Rides Again | 34405 |
31.51%
|
8117 |
77.61%
|
|
|
|
508 - Morse Mismatches | 5730 |
32.16%
|
738 |
83.20%
|
|
|
|
509 - RAID! | 3409 |
38.05%
|
594 |
80.13%
|
|
|
510 - Optimal Routing | 100 |
0.00%
|
49 |
0.00%
|
|
|
|
511 - Do You Know the Way to San Jose? | 1077 |
61.65%
|
330 |
84.55%
|
|
|
|
512 - Spreadsheet Tracking | 12853 |
32.72%
|
1790 |
80.11%
|
|
|
|
513 - Window Frames | 154 |
18.83%
|
92 |
14.13%
|
|
|
|
514 - Rails | 80918 |
40.07%
|
16014 |
85.44%
|
|
|
|
515 - King | 6586 |
25.40%
|
1073 |
68.31%
|
|
|
|
516 - Prime Land | 11325 |
44.60%
|
4084 |
83.72%
|
|
|
|
517 - Word | 3180 |
26.42%
|
796 |
73.99%
|
|
|
|
518 - Time | 1548 |
26.94%
|
527 |
61.67%
|
|
|
|
519 - Puzzle (II) | 2743 |
23.55%
|
589 |
63.67%
|
|
|
|
520 - Append | 1673 |
31.62%
|
456 |
77.19%
|
|
|
|
521 - Gossiping | 1187 |
36.90%
|
502 |
76.29%
|
|
|
|
522 - Schedule Problem | 540 |
12.78%
|
123 |
30.89%
|
|
|
|
523 - Minimum Transport Cost | 7311 |
19.89%
|
1307 |
57.84%
|
|
|
|
524 - Prime Ring Problem | 83385 |
28.89%
|
13231 |
78.96%
|
|
|
|
525 - Milk Bottle Data | 303 |
12.87%
|
83 |
30.12%
|
|
|
|
526 - String Distance and Transform Process | 14657 |
26.23%
|
2817 |
71.53%
|
|
|
|
527 - The partition of a cake | 2232 |
10.84%
|
364 |
42.31%
|
|
|
|
528 - The Problem of Train Setout | 156 |
5.13%
|
53 |
9.43%
|
|
|
|
529 - Addition Chains | 17055 |
25.22%
|
3156 |
67.90%
|
|
|
|
530 - Binomial Showdown | 42808 |
26.07%
|
10275 |
80.86%
|
|
|
|
531 - Compromise | 22209 |
30.41%
|
5171 |
76.56%
|
|
|
|
532 - Dungeon Master | 29923 |
40.59%
|
7729 |
89.79%
|
|
|
|
533 - Equation Solver | 1909 |
29.44%
|
703 |
58.75%
|
|
|
|
534 - Frogger | 21695 |
41.04%
|
6064 |
85.70%
|
|
|
|
535 - Globetrotter | 4209 |
31.27%
|
1247 |
78.27%
|
|
|
|
536 - Tree Recovery | 19561 |
65.39%
|
6541 |
94.40%
|
|
|
|
537 - Artificial Intelligence? | 18105 |
35.79%
|
5374 |
86.58%
|
|
|
|
538 - Balancing Bank Accounts | 3034 |
42.85%
|
1060 |
82.83%
|
|
|
|
539 - The Settlers of Catan | 8093 |
59.67%
|
3590 |
94.87%
|
|
|
|
540 - Team Queue | 51347 |
37.62%
|
8376 |
86.44%
|
|
|
|
541 - Error Correction | 30864 |
55.94%
|
12864 |
93.03%
|
|
|
|
542 - France '98 | 3420 |
62.46%
|
1830 |
90.05%
|
|
|
|
543 - Goldbach's Conjecture | 66133 |
42.88%
|
17905 |
89.68%
|
|
|
|
544 - Heavy Cargo | 13276 |
50.90%
|
4872 |
90.99%
|
|
|
|
545 - Heads | 6735 |
16.81%
|
1425 |
56.00%
|
|
|
|
546 - Image Recognizer | 410 |
20.73%
|
136 |
47.79%
|
|
|
|
547 - DDF | 3694 |
36.63%
|
984 |
81.50%
|
|
|
|
548 - Tree | 22755 |
45.28%
|
4016 |
87.77%
|
|
|
|
549 - Evaluating an Equations Board | 464 |
19.61%
|
130 |
46.92%
|
|
|
|
550 - Multiplying by Rotation | 3985 |
51.59%
|
1524 |
90.29%
|
|
|
|
551 - Nesting a Bunch of Brackets | 7593 |
31.58%
|
1702 |
76.15%
|
|
|
|
552 - Filling the Gaps | 1105 |
31.31%
|
331 |
74.02%
|
|
|
|
553 - Simply proportion | 433 |
46.42%
|
197 |
79.70%
|
|
|
|
554 - Caesar Cypher | 6368 |
18.97%
|
1538 |
57.87%
|
|
|
|
555 - Bridge Hands | 8649 |
42.81%
|
3153 |
80.75%
|
|
|
|
556 - Amazing | 4117 |
47.19%
|
1851 |
88.22%
|
|
|
|
557 - Burger | 4439 |
38.57%
|
1435 |
62.23%
|
|
|
|
558 - Wormholes | 31592 |
52.62%
|
9174 |
93.06%
|
|
|
|
559 - Squares (II) | 967 |
30.20%
|
321 |
67.60%
|
|
|
|
560 - Magic | 1759 |
18.99%
|
286 |
64.69%
|
|
|
|
561 - Jackpot | 1033 |
39.21%
|
491 |
63.34%
|
|
|
|
562 - Dividing coins | 63916 |
35.01%
|
12218 |
84.96%
|
|
|
|
563 - Crimewave | 7477 |
33.28%
|
1505 |
81.99%
|
|
|
|
564 - Gaston | 420 |
18.33%
|
111 |
53.15%
|
|
|
|
565 - Pizza Anyone? | 4280 |
38.43%
|
1083 |
76.36%
|
|
|
|
566 - Adam's Genes | 3295 |
9.20%
|
303 |
53.47%
|
|
|
|
567 - Risk | 22695 |
41.29%
|
6635 |
85.91%
|
|
|
|
568 - Just the Facts | 19377 |
53.61%
|
8441 |
90.48%
|
|
|
|
569 - Horse Shoe Scoring | 1082 |
10.26%
|
259 |
24.71%
|
|
|
|
570 - Stats | 706 |
47.73%
|
363 |
71.07%
|
|
|
|
571 - Jugs | 10327 |
45.90%
|
3065 |
87.67%
|
|
|
|
572 - Oil Deposits | 60439 |
61.64%
|
17582 |
95.74%
|
|
|
|
573 - The Snail | 48939 |
43.02%
|
17743 |
90.95%
|
|
|
|
574 - Sum It Up | 25211 |
45.10%
|
6912 |
88.57%
|
|
|
|
575 - Skew Binary | 26515 |
69.73%
|
15144 |
96.75%
|
|
|
|
576 - Haiku Review | 7356 |
59.08%
|
3932 |
92.52%
|
|
|
|
577 - WIMP | 756 |
21.30%
|
220 |
60.91%
|
|
|
|
578 - Polygon Puzzler | 600 |
31.17%
|
178 |
59.55%
|
|
|
|
579 - Clock Hands | 55343 |
44.19%
|
19168 |
92.40%
|
|
|
|
580 - Critical Mass | 8288 |
60.90%
|
2917 |
91.40%
|
|
|
|
581 - Word Search | 1141 |
10.78%
|
269 |
24.91%
|
|
|
|
582 - Randomly Wired Neural Nets | 147 |
20.41%
|
59 |
22.03%
|
|
|
|
583 - Prime Factors | 64649 |
29.45%
|
11998 |
79.72%
|
|
|
|
584 - Bowling | 5687 |
48.06%
|
2180 |
91.10%
|
|
|
|
585 - Triangles | 5404 |
27.35%
|
1417 |
73.61%
|
|
|
|
586 - Instant Complexity | 2186 |
35.04%
|
786 |
77.23%
|
|
|
|
587 - There's treasure everywhere! | 10581 |
32.68%
|
3286 |
82.74%
|
|
|
|
588 - Video Surveillance | 2169 |
37.81%
|
856 |
73.71%
|
|
|
|
589 - Pushing Boxes | 10214 |
17.02%
|
1096 |
81.39%
|
|
|
|
590 - Always on the run | 4461 |
47.05%
|
1681 |
88.40%
|
|
|
|
591 - Box of Bricks | 108446 |
32.76%
|
27263 |
85.35%
|
|
|
|
592 - Island of Logic | 2331 |
34.11%
|
715 |
78.74%
|
|
|
|
593 - MBone | 643 |
38.57%
|
281 |
75.44%
|
|
|
|
594 - One Little, Two Little, Three Little Endians | 12379 |
62.69%
|
5499 |
95.02%
|
|
|
|
595 - A Major Problem | 769 |
18.86%
|
234 |
46.15%
|
|
|
|
596 - The Incredible Hull | 912 |
39.69%
|
233 |
80.26%
|
|
|
|
597 - Last Name First, Please | 266 |
6.77%
|
79 |
13.92%
|
|
|
|
598 - Bundling Newspapers | 9503 |
23.41%
|
1538 |
73.15%
|
|
|
|
599 - The Forrest for the Trees | 11211 |
51.85%
|
3779 |
91.35%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |