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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 949692 |
26.76%
|
146412 |
74.00%
|
|
|
|
101 - The Blocks Problem | 127089 |
26.11%
|
25628 |
70.44%
|
|
|
|
102 - Ecological Bin Packing | 111480 |
39.44%
|
32538 |
87.24%
|
|
|
103 - Stacking Boxes | 46504 |
26.85%
|
12454 |
61.42%
|
|
|
|
104 - Arbitrage | 34036 |
25.24%
|
7245 |
68.01%
|
|
|
|
105 - The Skyline Problem | 66049 |
26.10%
|
15824 |
69.27%
|
|
|
|
106 - Fermat vs. Pythagoras | 30284 |
34.13%
|
7151 |
67.39%
|
|
|
|
107 - The Cat in the Hat | 53720 |
21.74%
|
9291 |
68.25%
|
|
|
|
108 - Maximum Sum | 75907 |
44.69%
|
24271 |
83.61%
|
|
|
|
109 - SCUD Busters | 14328 |
32.39%
|
3808 |
68.46%
|
|
|
|
110 - Meta-Loopless Sorts | 13450 |
32.28%
|
3668 |
66.09%
|
|
|
|
111 - History Grading | 36779 |
45.28%
|
13719 |
77.84%
|
|
|
|
112 - Tree Summing | 39854 |
28.38%
|
8240 |
78.19%
|
|
|
|
113 - Power of Cryptography | 79629 |
41.01%
|
25283 |
89.07%
|
|
|
|
114 - Simulation Wizardry | 9125 |
32.42%
|
2643 |
75.14%
|
|
|
|
115 - Climbing Trees | 7766 |
35.23%
|
2341 |
81.16%
|
|
|
|
116 - Unidirectional TSP | 71406 |
25.54%
|
12903 |
72.84%
|
|
|
|
117 - The Postal Worker Rings Once | 10227 |
49.78%
|
4048 |
89.25%
|
|
|
|
118 - Mutant Flatworld Explorers | 31365 |
41.72%
|
10564 |
86.94%
|
|
|
|
119 - Greedy Gift Givers | 45879 |
28.99%
|
13344 |
74.96%
|
|
|
|
120 - Stacks of Flapjacks | 48652 |
41.38%
|
13306 |
87.35%
|
|
|
|
121 - Pipe Fitters | 8616 |
42.98%
|
3474 |
87.02%
|
|
|
|
122 - Trees on the level | 43548 |
29.72%
|
7756 |
74.78%
|
|
|
|
123 - Searching Quickly | 14886 |
35.79%
|
5022 |
75.47%
|
|
|
|
124 - Following Orders | 15873 |
39.31%
|
5213 |
78.92%
|
|
|
|
125 - Numbering Paths | 11426 |
29.73%
|
3268 |
74.79%
|
|
|
|
126 - The Errant Physicist | 4597 |
31.69%
|
1634 |
75.76%
|
|
|
|
127 - "Accordian" Patience | 19779 |
39.78%
|
4926 |
81.69%
|
|
|
|
128 - Software CRC | 20257 |
42.93%
|
4540 |
88.04%
|
|
|
|
129 - Krypton Factor | 16332 |
39.87%
|
3226 |
84.22%
|
|
|
|
130 - Roman Roulette | 10002 |
41.90%
|
4027 |
81.33%
|
|
|
|
131 - The Psychic Poker Player | 4397 |
50.17%
|
1896 |
88.40%
|
|
|
|
132 - Bumpy Objects | 4468 |
42.19%
|
1251 |
82.09%
|
|
|
|
133 - The Dole Queue | 29366 |
49.42%
|
8235 |
88.89%
|
|
|
|
134 - Loglan-A Logical Language | 3785 |
29.59%
|
1132 |
80.21%
|
|
|
|
135 - No Rectangles | 3398 |
27.99%
|
1274 |
53.14%
|
|
|
|
136 - Ugly Numbers | 128976 |
32.97%
|
31050 |
79.58%
|
|
|
|
137 - Polygons | 5066 |
21.77%
|
1152 |
62.15%
|
|
|
|
138 - Street Numbers | 22158 |
45.46%
|
9004 |
84.74%
|
|
|
|
139 - Telephone Tangles | 10374 |
16.18%
|
1738 |
49.08%
|
|
|
|
140 - Bandwidth | 17122 |
43.05%
|
3868 |
87.67%
|
|
|
|
141 - The Spot Game | 8989 |
44.81%
|
2753 |
89.90%
|
|
|
|
142 - Mouse Clicks | 7041 |
22.34%
|
2454 |
46.13%
|
|
|
|
143 - Orchard Trees | 20733 |
12.61%
|
2686 |
44.79%
|
|
|
|
144 - Student Grants | 7851 |
46.47%
|
3180 |
85.25%
|
|
|
|
145 - Gondwanaland Telecom | 10834 |
25.62%
|
2927 |
74.82%
|
|
|
|
146 - ID Codes | 36404 |
57.80%
|
16510 |
93.54%
|
|
|
|
147 - Dollars | 67065 |
29.02%
|
13138 |
75.49%
|
|
|
|
148 - Anagram checker | 5573 |
35.60%
|
1610 |
76.40%
|
|
|
|
149 - Forests | 1384 |
44.51%
|
477 |
74.84%
|
|
|
|
150 - Double Time | 2715 |
32.60%
|
885 |
65.99%
|
|
|
|
151 - Power Crisis | 28512 |
60.38%
|
12369 |
93.09%
|
|
|
|
152 - Tree's a Crowd | 12717 |
39.10%
|
3674 |
87.13%
|
|
|
|
153 - Permalex | 8075 |
29.55%
|
2673 |
70.71%
|
|
|
|
154 - Recycling | 7425 |
53.12%
|
3714 |
89.18%
|
|
|
|
155 - All Squares | 7554 |
50.36%
|
3436 |
86.20%
|
|
|
|
156 - Ananagrams | 36668 |
66.15%
|
12138 |
94.58%
|
|
|
|
157 - Route Finding | 2165 |
32.79%
|
721 |
80.17%
|
|
|
|
158 - Calendar | 3462 |
16.18%
|
793 |
57.25%
|
|
|
|
159 - Word Crosses | 5670 |
24.57%
|
1837 |
60.86%
|
|
|
|
160 - Factors and Factorials | 47343 |
31.87%
|
13030 |
83.13%
|
|
|
|
161 - Traffic Lights | 10863 |
38.59%
|
3636 |
88.92%
|
|
|
|
162 - Beggar My Neighbour | 6752 |
33.03%
|
1972 |
80.88%
|
|
|
|
163 - City Directions | 1894 |
14.78%
|
364 |
57.42%
|
|
|
|
164 - String Computer | 14089 |
31.50%
|
3092 |
75.42%
|
|
|
|
165 - Stamps | 4780 |
40.59%
|
1545 |
80.52%
|
|
|
|
166 - Making Change | 12461 |
39.46%
|
3280 |
86.22%
|
|
|
|
167 - The Sultan's Successors | 30261 |
46.65%
|
8861 |
90.53%
|
|
|
|
168 - Theseus and the Minotaur | 9776 |
34.01%
|
2125 |
73.88%
|
|
|
|
169 - Xenosemantics | 2140 |
19.95%
|
342 |
63.74%
|
|
|
|
170 - Clock Patience | 7453 |
45.28%
|
2773 |
90.23%
|
|
|
|
171 - Car Trialling | 3511 |
14.38%
|
581 |
69.71%
|
|
|
|
172 - Calculator Language | 2723 |
26.07%
|
790 |
69.87%
|
|
|
|
173 - Network Wars | 3129 |
17.48%
|
652 |
46.01%
|
|
|
|
174 - Strategy | 1334 |
39.43%
|
561 |
79.32%
|
|
|
|
175 - Keywords | 2405 |
17.63%
|
585 |
47.69%
|
|
|
|
176 - City Navigation | 986 |
31.85%
|
311 |
80.06%
|
|
|
|
177 - Paper Folding | 4125 |
40.36%
|
1231 |
72.71%
|
|
|
|
178 - Shuffling Patience | 1207 |
38.69%
|
455 |
76.26%
|
|
|
|
179 - Code Breaking | 2401 |
25.24%
|
647 |
72.49%
|
|
|
|
180 - Eeny Meeny | 2689 |
22.54%
|
701 |
43.22%
|
|
|
|
181 - Hearts | 1265 |
48.93%
|
626 |
83.87%
|
|
|
|
182 - Bonus Bonds | 924 |
42.75%
|
449 |
78.62%
|
|
|
|
183 - Bit Maps | 7683 |
26.83%
|
2026 |
76.31%
|
|
|
|
184 - Laser Lines | 4995 |
44.36%
|
1405 |
85.05%
|
|
|
|
185 - Roman Numerals | 3236 |
40.54%
|
1044 |
82.66%
|
|
|
|
186 - Trip Routing | 4806 |
31.48%
|
1591 |
70.27%
|
|
|
|
187 - Transaction Processing | 3827 |
37.52%
|
1413 |
79.26%
|
|
|
|
188 - Perfect Hash | 5472 |
48.99%
|
1877 |
88.44%
|
|
|
|
189 - Pascal Program Lengths | 1136 |
22.71%
|
329 |
61.40%
|
|
|
|
190 - Circle Through Three Points | 18768 |
35.34%
|
5767 |
78.50%
|
|
|
|
191 - Intersection | 31131 |
22.98%
|
6215 |
69.40%
|
|
|
|
192 - Synchronous Design | 1202 |
30.28%
|
433 |
69.28%
|
|
|
|
193 - Graph Coloring | 24632 |
28.50%
|
5901 |
71.06%
|
|
|
|
194 - Triangle | 2770 |
17.11%
|
562 |
48.22%
|
|
|
|
195 - Anagram | 46451 |
25.92%
|
10858 |
69.60%
|
|
|
|
196 - Spreadsheet | 13580 |
25.60%
|
2330 |
76.05%
|
|
|
|
197 - Cube | 1603 |
19.84%
|
389 |
46.27%
|
|
|
|
198 - Peter's Calculator | 3001 |
19.83%
|
652 |
63.80%
|
|
|
|
199 - Partial differential equations | 1039 |
22.43%
|
406 |
44.83%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |