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 % | ||||
|
800 - Crystal Clear | 346 |
13.29%
|
114 |
30.70%
|
|
|
|
801 - Flight Planning | 534 |
20.60%
|
137 |
58.39%
|
|
|
|
802 - Lead or Gold | 1526 |
14.81%
|
272 |
46.69%
|
|
|
803 - Page Selection by Keyword Matching | 555 |
31.35%
|
104 |
42.31%
|
|
|
|
804 - Petri Net Simulation | 3609 |
33.56%
|
531 |
81.73%
|
|
|
|
805 - Polygon Intersections | 232 |
13.79%
|
90 |
26.67%
|
|
|
|
806 - Spatial Structures | 4922 |
27.47%
|
679 |
80.12%
|
|
|
|
807 - Towers of Powers | 423 |
17.97%
|
114 |
57.89%
|
|
|
|
808 - Bee Breeding | 4905 |
41.79%
|
1302 |
86.02%
|
|
|
|
809 - Bullet Hole | 1087 |
5.34%
|
180 |
26.11%
|
|
|
|
810 - A Dicey Problem | 3598 |
38.41%
|
626 |
85.46%
|
|
|
|
811 - The Fortified Forest | 3133 |
35.05%
|
797 |
80.05%
|
|
|
|
812 - Trade on Verweggistan | 8085 |
23.41%
|
1132 |
78.80%
|
|
|
|
813 - Robot | 530 |
10.94%
|
123 |
32.52%
|
|
|
|
814 - The Letter Carrier's Rounds | 5427 |
31.71%
|
849 |
78.56%
|
|
|
|
815 - Flooded! | 15885 |
32.20%
|
2227 |
86.71%
|
|
|
|
816 - Abbott's Revenge | 16347 |
31.76%
|
1895 |
83.80%
|
|
|
|
817 - According to Bartjens | 2708 |
31.24%
|
490 |
71.43%
|
|
|
|
818 - Cutting Chains | 3173 |
48.79%
|
629 |
86.17%
|
|
|
|
819 - Gifts Large and Small | 1073 |
15.84%
|
178 |
52.81%
|
|
|
|
820 - Internet Bandwidth | 39448 |
35.81%
|
7265 |
89.68%
|
|
|
|
821 - Page Hopping | 19792 |
55.50%
|
6800 |
94.18%
|
|
|
|
822 - Queue and A | 2276 |
40.47%
|
423 |
79.67%
|
|
|
|
823 - Stopper Stumper | 609 |
21.67%
|
154 |
57.14%
|
|
|
|
824 - Coast Tracker | 2331 |
49.38%
|
934 |
88.01%
|
|
|
|
825 - Walking on the Safe Side | 18975 |
28.92%
|
3467 |
84.08%
|
|
|
|
826 - Symbolic Numerical System | 1046 |
9.18%
|
148 |
53.38%
|
|
|
|
827 - Buddy Memory Allocator | 518 |
16.02%
|
113 |
53.98%
|
|
|
|
828 - Deciphering Messages | 964 |
28.94%
|
286 |
70.98%
|
|
|
|
829 - Almost Balanced Trees | 649 |
13.56%
|
85 |
35.29%
|
|
|
|
830 - Shark | 1273 |
29.77%
|
355 |
73.24%
|
|
|
|
831 - Document Validator | 553 |
27.12%
|
130 |
55.38%
|
|
|
|
832 - Financial Risk | 721 |
19.83%
|
176 |
65.91%
|
|
|
|
833 - Water Falls | 4069 |
39.99%
|
1492 |
81.43%
|
|
|
|
834 - Continued Fractions | 13462 |
62.98%
|
6649 |
95.31%
|
|
|
|
835 - Square of Primes | 1595 |
22.70%
|
327 |
54.74%
|
|
|
|
836 - Largest Submatrix | 15021 |
34.96%
|
4664 |
83.75%
|
|
|
|
837 - Light and Transparencies | 5459 |
37.75%
|
1692 |
85.70%
|
|
|
|
838 - Worm World | 2728 |
15.29%
|
495 |
40.40%
|
|
|
|
839 - Not so Mobile | 27448 |
36.72%
|
4660 |
87.73%
|
|
|
|
840 - Deadlock Detection | 872 |
23.85%
|
257 |
64.98%
|
|
|
|
841 - Snake | 1238 |
11.07%
|
133 |
48.87%
|
|
|
|
842 - Crossword Puzzles | 366 |
27.87%
|
100 |
58.00%
|
|
|
|
843 - Crypt Kicker | 23953 |
24.11%
|
4779 |
68.45%
|
|
|
|
844 - Pousse | 617 |
38.41%
|
235 |
70.64%
|
|
|
|
845 - Gas Station Numbers | 1941 |
25.91%
|
504 |
68.85%
|
|
|
|
846 - Steps | 20662 |
48.68%
|
7870 |
89.83%
|
|
|
|
847 - A Multiplication Game | 18625 |
52.22%
|
8262 |
88.78%
|
|
|
|
848 - Fmt | 5707 |
20.76%
|
1201 |
63.45%
|
|
|
|
849 - Radar Tracking | 940 |
9.36%
|
120 |
28.33%
|
|
|
|
850 - Crypt Kicker II | 21706 |
23.51%
|
4792 |
72.87%
|
|
|
|
851 - Maze | 2385 |
23.10%
|
290 |
54.48%
|
|
|
|
852 - Deciding victory in Go | 3704 |
56.78%
|
1519 |
93.22%
|
|
|
|
853 - DVD Subtitles | 582 |
20.62%
|
117 |
64.96%
|
|
|
|
854 - Worse Code | 362 |
16.57%
|
63 |
53.97%
|
|
|
|
855 - Lunch in Grid City | 10192 |
35.40%
|
2758 |
86.26%
|
|
|
|
856 - The Vigenère Cipher | 966 |
41.82%
|
371 |
77.09%
|
|
|
|
857 - Quantiser | 1027 |
41.58%
|
348 |
85.34%
|
|
|
|
858 - Berry Picking | 1472 |
42.19%
|
484 |
87.19%
|
|
|
|
859 - Chinese Checkers | 1170 |
28.46%
|
304 |
79.93%
|
|
|
|
860 - Entropy Text Analyzer | 4582 |
26.82%
|
884 |
78.17%
|
|
|
|
861 - Little Bishops | 16421 |
35.20%
|
4257 |
79.35%
|
|
|
|
862 - Origami | 269 |
17.10%
|
54 |
62.96%
|
|
|
|
863 - Process Scheduling | 498 |
2.41%
|
52 |
7.69%
|
|
|
|
864 - Scheme Pretty-Printing | 134 |
34.33%
|
81 |
51.85%
|
|
|
|
865 - Substitution Cypher | 6121 |
29.16%
|
1560 |
80.38%
|
|
|
|
866 - Intersecting Line Segments | 3500 |
44.63%
|
1077 |
86.26%
|
|
|
|
867 - Storing Images in a Sequence | 84 |
1.19%
|
39 |
2.56%
|
|
|
|
868 - Numerical Maze | 2434 |
28.51%
|
647 |
78.05%
|
|
|
|
869 - Airline Comparison | 4047 |
43.04%
|
1269 |
84.40%
|
|
|
|
870 - Intersecting Rectangles | 664 |
29.82%
|
205 |
79.51%
|
|
|
|
871 - Counting Cells in a Blob | 18081 |
31.72%
|
3285 |
89.71%
|
|
|
|
872 - Ordering | 8947 |
41.99%
|
2818 |
92.33%
|
|
|
|
873 - Loan (II) | 374 |
28.88%
|
109 |
75.23%
|
|
|
|
874 - 2D Representations | 565 |
28.32%
|
160 |
59.38%
|
|
|
|
875 - Monopoly | 67 |
1.49%
|
45 |
2.22%
|
|
|
|
876 - Balanced Expressions | 114 |
3.51%
|
55 |
5.45%
|
|
|
|
877 - Offset Polygons | 360 |
26.39%
|
103 |
76.70%
|
|
|
|
878 - Rotating Tetris Pieces | 524 |
26.53%
|
90 |
66.67%
|
|
|
|
879 - Circuit Nets | 1845 |
23.58%
|
325 |
72.00%
|
|
|
|
880 - Cantor Fractions | 9129 |
31.54%
|
2244 |
81.11%
|
|
|
|
881 - Points, Polygons and Containers | 633 |
26.86%
|
156 |
76.92%
|
|
|
|
882 - The Mailbox Manufacturers Problem | 1617 |
74.34%
|
748 |
94.39%
|
|
|
|
883 - Overlapping Rectangles | 348 |
33.05%
|
116 |
76.72%
|
|
|
|
884 - Factorial Factors | 15209 |
44.84%
|
3610 |
85.01%
|
|
|
|
885 - Telephone Directory Alphabetization | 473 |
7.61%
|
60 |
40.00%
|
|
|
|
886 - Named Extension Dialing | 827 |
30.71%
|
230 |
81.74%
|
|
|
|
887 - Revolutionary Calendar | 452 |
17.26%
|
58 |
60.34%
|
|
|
|
888 - Donkey | 459 |
15.03%
|
79 |
35.44%
|
|
|
|
889 - Islands | 198 |
34.85%
|
59 |
57.63%
|
|
|
|
890 - Maze (II) | 435 |
27.13%
|
126 |
68.25%
|
|
|
|
891 - Syntrax | 226 |
26.11%
|
58 |
74.14%
|
|
|
|
892 - Finding words | 2464 |
35.92%
|
898 |
75.06%
|
|
|
|
893 - Y3K Problem | 5191 |
50.18%
|
2295 |
90.81%
|
|
|
|
894 - Juggling Trams | 102 |
24.51%
|
32 |
50.00%
|
|
|
|
895 - Word Problem | 4522 |
59.18%
|
2213 |
93.45%
|
|
|
|
896 - Board Game | 160 |
8.12%
|
43 |
18.60%
|
|
|
|
897 - Anagrammatic Primes | 5556 |
46.15%
|
1719 |
91.04%
|
|
|
|
898 - Hole Cutter | 385 |
29.61%
|
97 |
68.04%
|
|
|
|
899 - Colour Circles | 430 |
44.42%
|
153 |
84.31%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |