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 | 2643 |
10.71%
|
602 |
30.90%
|
|
|
|
501 - Black Box | 18671 |
25.13%
|
3076 |
65.05%
|
|
|
502 - DEL command | 2100 |
12.24%
|
440 |
41.59%
|
|
|
|
503 - Parallelepiped walk | 953 |
17.94%
|
304 |
43.09%
|
|
|
|
504 - Random number | 938 |
6.29%
|
197 |
21.32%
|
|
|
|
505 - Moscow time | 1862 |
18.90%
|
489 |
61.35%
|
|
|
|
506 - System Dependencies | 4441 |
27.79%
|
603 |
73.63%
|
|
|
|
507 - Jill Rides Again | 33984 |
31.37%
|
8066 |
77.55%
|
|
|
|
508 - Morse Mismatches | 5682 |
32.17%
|
730 |
83.29%
|
|
|
|
509 - RAID! | 3374 |
37.97%
|
589 |
80.14%
|
|
|
510 - Optimal Routing | 97 |
0.00%
|
47 |
0.00%
|
|
|
|
511 - Do You Know the Way to San Jose? | 1062 |
61.77%
|
325 |
84.62%
|
|
|
|
512 - Spreadsheet Tracking | 12702 |
32.81%
|
1770 |
80.23%
|
|
|
|
513 - Window Frames | 153 |
18.95%
|
91 |
14.29%
|
|
|
|
514 - Rails | 79379 |
39.88%
|
15845 |
85.40%
|
|
|
|
515 - King | 6524 |
25.37%
|
1057 |
68.31%
|
|
|
|
516 - Prime Land | 11125 |
44.54%
|
4062 |
83.73%
|
|
|
|
517 - Word | 3179 |
26.42%
|
795 |
74.09%
|
|
|
|
518 - Time | 1546 |
26.97%
|
525 |
61.90%
|
|
|
|
519 - Puzzle (II) | 2741 |
23.53%
|
588 |
63.78%
|
|
|
|
520 - Append | 1671 |
31.60%
|
454 |
77.31%
|
|
|
|
521 - Gossiping | 1182 |
36.80%
|
498 |
76.31%
|
|
|
|
522 - Schedule Problem | 524 |
11.64%
|
119 |
28.57%
|
|
|
|
523 - Minimum Transport Cost | 7287 |
19.80%
|
1300 |
57.85%
|
|
|
|
524 - Prime Ring Problem | 81765 |
28.92%
|
13105 |
78.94%
|
|
|
|
525 - Milk Bottle Data | 301 |
12.96%
|
81 |
30.86%
|
|
|
|
526 - String Distance and Transform Process | 14355 |
26.19%
|
2803 |
71.46%
|
|
|
|
527 - The partition of a cake | 2227 |
10.82%
|
360 |
42.50%
|
|
|
|
528 - The Problem of Train Setout | 153 |
4.58%
|
50 |
8.00%
|
|
|
|
529 - Addition Chains | 16030 |
25.16%
|
3017 |
67.55%
|
|
|
|
530 - Binomial Showdown | 42599 |
25.96%
|
10249 |
80.87%
|
|
|
|
531 - Compromise | 22087 |
30.39%
|
5162 |
76.54%
|
|
|
|
532 - Dungeon Master | 29631 |
40.43%
|
7675 |
89.79%
|
|
|
|
533 - Equation Solver | 1904 |
29.31%
|
699 |
58.51%
|
|
|
|
534 - Frogger | 21317 |
40.97%
|
6005 |
85.65%
|
|
|
|
535 - Globetrotter | 4204 |
31.21%
|
1244 |
78.30%
|
|
|
|
536 - Tree Recovery | 18888 |
65.34%
|
6484 |
94.43%
|
|
|
|
537 - Artificial Intelligence? | 18091 |
35.79%
|
5369 |
86.59%
|
|
|
|
538 - Balancing Bank Accounts | 3024 |
42.89%
|
1056 |
83.05%
|
|
|
|
539 - The Settlers of Catan | 8075 |
59.65%
|
3580 |
94.89%
|
|
|
|
540 - Team Queue | 50436 |
37.39%
|
8226 |
86.30%
|
|
|
|
541 - Error Correction | 30390 |
55.85%
|
12793 |
93.01%
|
|
|
|
542 - France '98 | 3389 |
62.67%
|
1818 |
90.15%
|
|
|
|
543 - Goldbach's Conjecture | 65261 |
42.73%
|
17766 |
89.63%
|
|
|
|
544 - Heavy Cargo | 13210 |
50.92%
|
4860 |
91.01%
|
|
|
|
545 - Heads | 6707 |
16.74%
|
1421 |
55.95%
|
|
|
|
546 - Image Recognizer | 408 |
20.83%
|
134 |
48.51%
|
|
|
|
547 - DDF | 3690 |
36.67%
|
980 |
81.84%
|
|
|
|
548 - Tree | 22444 |
45.13%
|
3976 |
87.73%
|
|
|
|
549 - Evaluating an Equations Board | 462 |
19.70%
|
128 |
47.66%
|
|
|
|
550 - Multiplying by Rotation | 3969 |
51.52%
|
1516 |
90.30%
|
|
|
|
551 - Nesting a Bunch of Brackets | 7438 |
31.69%
|
1682 |
76.04%
|
|
|
|
552 - Filling the Gaps | 1103 |
31.37%
|
329 |
74.47%
|
|
|
|
553 - Simply proportion | 430 |
46.74%
|
194 |
80.93%
|
|
|
|
554 - Caesar Cypher | 6337 |
18.92%
|
1534 |
57.82%
|
|
|
|
555 - Bridge Hands | 8583 |
42.88%
|
3141 |
80.74%
|
|
|
|
556 - Amazing | 4105 |
47.26%
|
1847 |
88.25%
|
|
|
|
557 - Burger | 4378 |
38.51%
|
1417 |
61.82%
|
|
|
|
558 - Wormholes | 30734 |
52.63%
|
9119 |
93.06%
|
|
|
|
559 - Squares (II) | 964 |
30.19%
|
318 |
67.92%
|
|
|
|
560 - Magic | 1757 |
19.01%
|
284 |
65.14%
|
|
|
|
561 - Jackpot | 1031 |
39.28%
|
489 |
63.60%
|
|
|
|
562 - Dividing coins | 62656 |
34.90%
|
12147 |
84.95%
|
|
|
|
563 - Crimewave | 7402 |
33.19%
|
1492 |
81.90%
|
|
|
|
564 - Gaston | 418 |
18.42%
|
109 |
54.13%
|
|
|
|
565 - Pizza Anyone? | 4236 |
38.57%
|
1079 |
76.46%
|
|
|
|
566 - Adam's Genes | 3291 |
9.15%
|
299 |
53.51%
|
|
|
|
567 - Risk | 22613 |
41.29%
|
6624 |
85.91%
|
|
|
|
568 - Just the Facts | 19343 |
53.60%
|
8428 |
90.50%
|
|
|
|
569 - Horse Shoe Scoring | 1074 |
9.96%
|
253 |
23.72%
|
|
|
|
570 - Stats | 691 |
48.05%
|
355 |
72.11%
|
|
|
|
571 - Jugs | 10203 |
45.75%
|
3038 |
87.66%
|
|
|
|
572 - Oil Deposits | 59202 |
61.52%
|
17379 |
95.73%
|
|
|
|
573 - The Snail | 47896 |
43.04%
|
17672 |
90.95%
|
|
|
|
574 - Sum It Up | 24570 |
44.92%
|
6868 |
88.60%
|
|
|
|
575 - Skew Binary | 26483 |
69.73%
|
15130 |
96.75%
|
|
|
|
576 - Haiku Review | 7340 |
59.07%
|
3924 |
92.53%
|
|
|
|
577 - WIMP | 755 |
21.32%
|
219 |
61.19%
|
|
|
|
578 - Polygon Puzzler | 599 |
31.22%
|
177 |
59.89%
|
|
|
|
579 - Clock Hands | 55077 |
44.12%
|
19132 |
92.41%
|
|
|
|
580 - Critical Mass | 8259 |
60.83%
|
2901 |
91.38%
|
|
|
|
581 - Word Search | 1140 |
10.79%
|
268 |
25.00%
|
|
|
|
582 - Randomly Wired Neural Nets | 146 |
20.55%
|
58 |
22.41%
|
|
|
|
583 - Prime Factors | 64207 |
29.37%
|
11967 |
79.70%
|
|
|
|
584 - Bowling | 5633 |
48.02%
|
2156 |
91.19%
|
|
|
|
585 - Triangles | 5397 |
27.37%
|
1413 |
73.81%
|
|
|
|
586 - Instant Complexity | 2170 |
35.02%
|
783 |
77.14%
|
|
|
|
587 - There's treasure everywhere! | 10496 |
32.71%
|
3276 |
82.75%
|
|
|
|
588 - Video Surveillance | 2157 |
37.92%
|
852 |
73.94%
|
|
|
|
589 - Pushing Boxes | 10037 |
16.64%
|
1068 |
81.37%
|
|
|
|
590 - Always on the run | 4437 |
46.99%
|
1674 |
88.41%
|
|
|
|
591 - Box of Bricks | 107657 |
32.67%
|
27200 |
85.32%
|
|
|
|
592 - Island of Logic | 2324 |
34.04%
|
712 |
78.79%
|
|
|
|
593 - MBone | 642 |
38.63%
|
280 |
75.71%
|
|
|
|
594 - One Little, Two Little, Three Little Endians | 12167 |
62.55%
|
5487 |
95.04%
|
|
|
|
595 - A Major Problem | 766 |
18.67%
|
231 |
45.89%
|
|
|
|
596 - The Incredible Hull | 911 |
39.74%
|
232 |
80.60%
|
|
|
|
597 - Last Name First, Please | 265 |
6.79%
|
78 |
14.10%
|
|
|
|
598 - Bundling Newspapers | 9437 |
23.37%
|
1532 |
73.17%
|
|
|
|
599 - The Forrest for the Trees | 11045 |
51.81%
|
3755 |
91.37%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |