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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
600 - A Duckpin Tournament | 1452 |
16.32%
|
290 |
34.14%
|
|
|
|
601 - The PATH | 5142 |
29.62%
|
1328 |
73.34%
|
|
|
|
602 - What Day Is It? | 10870 |
25.80%
|
1876 |
65.51%
|
|
|
|
603 - Parking Lot | 3625 |
24.30%
|
954 |
50.63%
|
|
|
|
604 - The Boggle Game | 4519 |
31.02%
|
985 |
63.55%
|
|
|
605 - The Rotating Disk | 695 |
8.78%
|
115 |
28.70%
|
|
|
|
606 - Keeps Going and Going and ... | 726 |
16.39%
|
244 |
45.08%
|
|
|
|
607 - Scheduling Lectures | 7617 |
27.40%
|
1674 |
65.77%
|
|
|
|
608 - Counterfeit Dollar | 9354 |
35.83%
|
3083 |
78.37%
|
|
|
|
609 - Metal Cutting | 1521 |
19.20%
|
332 |
43.98%
|
|
|
|
610 - Street Directions | 8426 |
41.55%
|
2308 |
83.23%
|
|
|
|
611 - Parallel Deadlock | 478 |
15.06%
|
174 |
33.33%
|
|
|
|
612 - DNA Sorting | 46635 |
24.00%
|
9242 |
68.09%
|
|
|
|
613 - Numbers That Count | 2934 |
22.87%
|
901 |
50.83%
|
|
|
|
614 - Mapping the Route | 2999 |
35.91%
|
1111 |
71.47%
|
|
|
|
615 - Is It A Tree? | 22696 |
21.90%
|
4280 |
67.52%
|
|
|
|
616 - Coconuts, Revisited | 13130 |
29.42%
|
2971 |
72.60%
|
|
|
|
617 - Nonstop Travel | 2678 |
46.68%
|
1217 |
85.87%
|
|
|
|
618 - Doing Windows | 1185 |
27.43%
|
426 |
66.43%
|
|
|
|
619 - Numerically Speaking | 4568 |
49.91%
|
1673 |
86.37%
|
|
|
|
620 - Cellular Structure | 4064 |
53.12%
|
1824 |
86.90%
|
|
|
|
621 - Secret Research | 34830 |
46.94%
|
14141 |
90.08%
|
|
|
|
622 - Grammar Evaluation | 3156 |
24.84%
|
1057 |
58.85%
|
|
|
|
623 - 500! | 50040 |
30.57%
|
12698 |
74.86%
|
|
|
|
624 - CD | 48127 |
46.08%
|
11390 |
89.68%
|
|
|
|
625 - Compression | 1545 |
20.00%
|
403 |
59.06%
|
|
|
|
626 - Ecosystem | 3935 |
41.96%
|
1482 |
84.55%
|
|
|
|
627 - The Net | 6484 |
43.23%
|
2243 |
86.63%
|
|
|
|
628 - Passwords | 10640 |
58.54%
|
3841 |
90.58%
|
|
|
|
629 - Test | 550 |
52.36%
|
184 |
73.91%
|
|
|
|
630 - Anagrams (II) | 8471 |
27.46%
|
2319 |
68.82%
|
|
|
|
631 - Microzoft Calendar | 608 |
17.60%
|
147 |
53.74%
|
|
|
|
632 - Compression (II) | 2884 |
25.94%
|
800 |
71.88%
|
|
|
|
633 - A Chess Knight | 2993 |
21.55%
|
640 |
82.03%
|
|
|
|
634 - Polygon | 5512 |
52.81%
|
1958 |
90.50%
|
|
|
|
635 - Clock solitaire | 480 |
55.83%
|
240 |
83.33%
|
|
|
|
636 - Squares (III) | 4616 |
54.46%
|
2251 |
92.36%
|
|
|
|
637 - Booklet Printing | 9814 |
45.08%
|
4033 |
86.64%
|
|
|
|
638 - Finding Rectangles | 2902 |
37.01%
|
915 |
71.69%
|
|
|
|
639 - Don't Get Rooked | 9219 |
59.25%
|
4004 |
91.73%
|
|
|
|
640 - Self Numbers | 16055 |
50.33%
|
6051 |
89.84%
|
|
|
|
641 - Do the Untwist | 2600 |
64.96%
|
1348 |
91.62%
|
|
|
|
642 - Word Amalgamation | 8465 |
55.18%
|
3681 |
92.23%
|
|
|
|
643 - Bulk Mailing | 637 |
19.31%
|
178 |
49.44%
|
|
|
|
644 - Immediate Decodability | 16301 |
44.14%
|
5079 |
91.46%
|
|
|
|
645 - File Mapping | 1202 |
25.87%
|
415 |
58.80%
|
|
|
|
646 - The Gourmet Club | 509 |
14.54%
|
99 |
32.32%
|
|
|
|
647 - Chutes and Ladders | 1626 |
59.04%
|
932 |
84.01%
|
|
|
|
648 - Stamps (II) | 577 |
30.68%
|
229 |
61.57%
|
|
|
|
649 - You Who? | 209 |
20.57%
|
85 |
35.29%
|
|
|
|
650 - Bowl | 814 |
10.81%
|
248 |
23.39%
|
|
|
|
651 - Deck | 1828 |
53.01%
|
919 |
85.64%
|
|
|
|
652 - Eight | 8782 |
19.05%
|
1134 |
53.09%
|
|
|
|
653 - Gizilch | 1151 |
31.10%
|
337 |
67.95%
|
|
|
|
654 - Ratio | 2385 |
29.77%
|
856 |
64.84%
|
|
|
|
655 - Scrabble | 897 |
10.59%
|
278 |
17.27%
|
|
|
|
656 - Optimal Programs | 2092 |
25.57%
|
563 |
64.48%
|
|
|
|
657 - The die is cast | 17081 |
28.56%
|
3622 |
80.12%
|
|
|
|
658 - It's not a Bug, it's a Feature! | 9464 |
32.80%
|
1369 |
82.98%
|
|
|
|
659 - Reflections | 732 |
36.20%
|
285 |
77.19%
|
|
|
|
660 - Going in circles on Alpha Centauri | 594 |
29.63%
|
208 |
66.83%
|
|
|
|
661 - Blowing Fuses | 23433 |
36.23%
|
7748 |
90.18%
|
|
|
|
662 - Fast Food | 5681 |
30.72%
|
1103 |
81.32%
|
|
|
|
663 - Sorting Slides | 4984 |
21.69%
|
1194 |
58.12%
|
|
|
|
664 - Single-Player Games | 695 |
23.74%
|
190 |
69.47%
|
|
|
|
665 - False coin | 7226 |
29.96%
|
2173 |
72.71%
|
|
|
|
666 - Rating | 421 |
8.08%
|
123 |
23.58%
|
|
|
|
667 - Fence | 613 |
18.27%
|
178 |
46.63%
|
|
|
|
668 - Parliament | 3685 |
29.04%
|
1193 |
67.39%
|
|
|
|
669 - Defragment | 1336 |
24.70%
|
320 |
62.50%
|
|
|
|
670 - The dog task | 8106 |
33.91%
|
1441 |
74.88%
|
|
|
|
671 - Spell checker | 4126 |
24.94%
|
962 |
65.90%
|
|
|
|
672 - Gangsters | 2580 |
25.54%
|
631 |
65.77%
|
|
|
|
673 - Parentheses Balance | 178740 |
26.92%
|
25044 |
80.65%
|
|
|
|
674 - Coin Change | 59689 |
48.21%
|
16011 |
91.47%
|
|
|
|
675 - Convex Hull of the Polygon | 2322 |
13.05%
|
387 |
41.60%
|
|
|
|
676 - Horse Step Maze | 1563 |
11.64%
|
289 |
50.87%
|
|
|
|
677 - All Walks of length "n" from the first node | 5190 |
37.67%
|
1637 |
84.24%
|
|
|
|
678 - Schedule of Taiwan Baseball League | 277 |
28.88%
|
119 |
47.06%
|
|
|
|
679 - Dropping Balls | 36022 |
42.24%
|
7503 |
86.03%
|
|
|
|
680 - Movement of Reading Head | 579 |
36.79%
|
216 |
79.17%
|
|
|
|
681 - Convex Hull Finding | 18999 |
26.48%
|
3099 |
74.83%
|
|
|
|
682 - Whoever-pick-the-last-one-lose | 675 |
32.59%
|
204 |
66.18%
|
|
|
|
683 - Character Decoding | 322 |
22.98%
|
119 |
43.70%
|
|
|
|
684 - Integral Determinant | 4289 |
19.61%
|
682 |
57.04%
|
|
|
|
685 - Least Path Cost | 842 |
32.66%
|
268 |
79.85%
|
|
|
|
686 - Goldbach's Conjecture (II) | 28745 |
56.16%
|
11487 |
93.94%
|
|
|
|
687 - Lattice Practices | 452 |
20.80%
|
98 |
56.12%
|
|
|
|
688 - Mobile Phone Coverage | 3285 |
35.77%
|
940 |
83.51%
|
|
|
|
689 - Napoleon's Grumble | 1328 |
12.95%
|
342 |
38.01%
|
|
|
|
690 - Pipeline Scheduling | 2930 |
33.62%
|
301 |
74.75%
|
|
|
|
691 - Triangle Partition | 1552 |
2.13%
|
131 |
15.27%
|
|
|
|
692 - BUT We Need a Diagram | 480 |
22.92%
|
149 |
56.38%
|
|
|
|
693 - Digital Racing Circuit | 423 |
8.04%
|
59 |
18.64%
|
|
|
|
694 - The Collatz Sequence | 40926 |
40.92%
|
13201 |
89.04%
|
|
|
|
695 - Placing the Ops | 1151 |
35.01%
|
207 |
69.57%
|
|
|
|
696 - How Many Knights | 15899 |
38.90%
|
4954 |
88.98%
|
|
|
|
697 - Jack and Jill | 3705 |
13.68%
|
682 |
39.88%
|
|
|
|
698 - Index | 2391 |
11.59%
|
483 |
31.47%
|
|
|
|
699 - The Falling Leaves | 20955 |
40.87%
|
4252 |
84.31%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |