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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 945417 |
26.70%
|
145860 |
73.97%
|
|
|
|
101 - The Blocks Problem | 126674 |
26.02%
|
25539 |
70.39%
|
|
|
|
102 - Ecological Bin Packing | 111334 |
39.41%
|
32499 |
87.24%
|
|
|
103 - Stacking Boxes | 46404 |
26.80%
|
12427 |
61.36%
|
|
|
|
104 - Arbitrage | 33944 |
25.21%
|
7215 |
68.02%
|
|
|
|
105 - The Skyline Problem | 65874 |
26.08%
|
15787 |
69.24%
|
|
|
|
106 - Fermat vs. Pythagoras | 30255 |
34.12%
|
7133 |
67.39%
|
|
|
|
107 - The Cat in the Hat | 53470 |
21.73%
|
9265 |
68.26%
|
|
|
|
108 - Maximum Sum | 75434 |
44.69%
|
24204 |
83.60%
|
|
|
|
109 - SCUD Busters | 14290 |
32.40%
|
3797 |
68.45%
|
|
|
|
110 - Meta-Loopless Sorts | 13262 |
32.14%
|
3658 |
66.10%
|
|
|
|
111 - History Grading | 36300 |
45.50%
|
13683 |
77.86%
|
|
|
|
112 - Tree Summing | 39711 |
28.32%
|
8197 |
78.17%
|
|
|
|
113 - Power of Cryptography | 79373 |
41.01%
|
25218 |
89.09%
|
|
|
|
114 - Simulation Wizardry | 9096 |
32.48%
|
2634 |
75.25%
|
|
|
|
115 - Climbing Trees | 7754 |
35.22%
|
2334 |
81.28%
|
|
|
|
116 - Unidirectional TSP | 71299 |
25.50%
|
12873 |
72.80%
|
|
|
|
117 - The Postal Worker Rings Once | 10202 |
49.77%
|
4034 |
89.32%
|
|
|
|
118 - Mutant Flatworld Explorers | 30458 |
41.79%
|
10438 |
86.85%
|
|
|
|
119 - Greedy Gift Givers | 45705 |
28.95%
|
13314 |
74.90%
|
|
|
|
120 - Stacks of Flapjacks | 48531 |
41.35%
|
13283 |
87.37%
|
|
|
|
121 - Pipe Fitters | 8603 |
42.99%
|
3467 |
87.08%
|
|
|
|
122 - Trees on the level | 43348 |
29.67%
|
7716 |
74.75%
|
|
|
|
123 - Searching Quickly | 14858 |
35.74%
|
5009 |
75.44%
|
|
|
|
124 - Following Orders | 15756 |
39.27%
|
5196 |
78.85%
|
|
|
|
125 - Numbering Paths | 11372 |
29.75%
|
3257 |
74.76%
|
|
|
|
126 - The Errant Physicist | 4580 |
31.79%
|
1631 |
75.84%
|
|
|
|
127 - "Accordian" Patience | 19548 |
40.02%
|
4914 |
81.66%
|
|
|
|
128 - Software CRC | 20240 |
42.92%
|
4532 |
88.04%
|
|
|
|
129 - Krypton Factor | 16293 |
39.85%
|
3215 |
84.23%
|
|
|
|
130 - Roman Roulette | 9906 |
42.10%
|
4018 |
81.33%
|
|
|
|
131 - The Psychic Poker Player | 4374 |
50.11%
|
1891 |
88.42%
|
|
|
|
132 - Bumpy Objects | 4460 |
42.17%
|
1247 |
82.12%
|
|
|
|
133 - The Dole Queue | 29189 |
49.50%
|
8206 |
88.95%
|
|
|
|
134 - Loglan-A Logical Language | 3781 |
29.54%
|
1131 |
80.19%
|
|
|
|
135 - No Rectangles | 3385 |
27.86%
|
1270 |
53.15%
|
|
|
|
136 - Ugly Numbers | 128242 |
32.95%
|
30975 |
79.56%
|
|
|
|
137 - Polygons | 5053 |
21.77%
|
1150 |
62.17%
|
|
|
|
138 - Street Numbers | 22147 |
45.45%
|
8997 |
84.76%
|
|
|
|
139 - Telephone Tangles | 10372 |
16.18%
|
1737 |
49.11%
|
|
|
|
140 - Bandwidth | 17060 |
43.08%
|
3858 |
87.69%
|
|
|
|
141 - The Spot Game | 8979 |
44.79%
|
2746 |
89.95%
|
|
|
|
142 - Mouse Clicks | 7032 |
22.34%
|
2452 |
46.13%
|
|
|
|
143 - Orchard Trees | 20727 |
12.61%
|
2684 |
44.78%
|
|
|
|
144 - Student Grants | 7845 |
46.45%
|
3175 |
85.26%
|
|
|
|
145 - Gondwanaland Telecom | 10762 |
25.61%
|
2919 |
74.82%
|
|
|
|
146 - ID Codes | 36297 |
57.76%
|
16478 |
93.54%
|
|
|
|
147 - Dollars | 66602 |
28.94%
|
13097 |
75.45%
|
|
|
|
148 - Anagram checker | 5572 |
35.61%
|
1609 |
76.44%
|
|
|
|
149 - Forests | 1358 |
45.36%
|
474 |
75.32%
|
|
|
|
150 - Double Time | 2713 |
32.62%
|
883 |
66.14%
|
|
|
|
151 - Power Crisis | 28282 |
60.43%
|
12320 |
93.11%
|
|
|
|
152 - Tree's a Crowd | 12703 |
39.10%
|
3672 |
87.15%
|
|
|
|
153 - Permalex | 8061 |
29.52%
|
2670 |
70.71%
|
|
|
|
154 - Recycling | 7417 |
53.12%
|
3709 |
89.22%
|
|
|
|
155 - All Squares | 7546 |
50.38%
|
3434 |
86.23%
|
|
|
|
156 - Ananagrams | 36245 |
66.23%
|
12074 |
94.57%
|
|
|
|
157 - Route Finding | 2164 |
32.81%
|
720 |
80.28%
|
|
|
|
158 - Calendar | 3457 |
16.20%
|
792 |
57.32%
|
|
|
|
159 - Word Crosses | 5664 |
24.58%
|
1835 |
60.93%
|
|
|
|
160 - Factors and Factorials | 47057 |
31.86%
|
13012 |
83.12%
|
|
|
|
161 - Traffic Lights | 10831 |
38.61%
|
3628 |
88.97%
|
|
|
|
162 - Beggar My Neighbour | 6685 |
33.18%
|
1963 |
81.10%
|
|
|
|
163 - City Directions | 1893 |
14.79%
|
363 |
57.58%
|
|
|
|
164 - String Computer | 14087 |
31.50%
|
3090 |
75.44%
|
|
|
|
165 - Stamps | 4761 |
40.62%
|
1539 |
80.57%
|
|
|
|
166 - Making Change | 12379 |
39.41%
|
3263 |
86.24%
|
|
|
|
167 - The Sultan's Successors | 29824 |
46.59%
|
8822 |
90.51%
|
|
|
|
168 - Theseus and the Minotaur | 9750 |
34.01%
|
2122 |
73.89%
|
|
|
|
169 - Xenosemantics | 2137 |
19.98%
|
340 |
64.12%
|
|
|
|
170 - Clock Patience | 7435 |
45.27%
|
2767 |
90.24%
|
|
|
|
171 - Car Trialling | 3510 |
14.39%
|
580 |
69.83%
|
|
|
|
172 - Calculator Language | 2722 |
26.08%
|
789 |
69.96%
|
|
|
|
173 - Network Wars | 3128 |
17.49%
|
651 |
46.08%
|
|
|
|
174 - Strategy | 1333 |
39.46%
|
560 |
79.46%
|
|
|
|
175 - Keywords | 2388 |
17.71%
|
582 |
47.77%
|
|
|
|
176 - City Navigation | 985 |
31.88%
|
310 |
80.32%
|
|
|
|
177 - Paper Folding | 4000 |
40.27%
|
1226 |
72.76%
|
|
|
|
178 - Shuffling Patience | 1198 |
38.98%
|
448 |
77.46%
|
|
|
|
179 - Code Breaking | 2400 |
25.25%
|
646 |
72.60%
|
|
|
|
180 - Eeny Meeny | 2682 |
22.60%
|
698 |
43.41%
|
|
|
|
181 - Hearts | 1263 |
48.93%
|
625 |
83.84%
|
|
|
|
182 - Bonus Bonds | 923 |
42.80%
|
448 |
78.79%
|
|
|
|
183 - Bit Maps | 7585 |
26.68%
|
2019 |
76.28%
|
|
|
|
184 - Laser Lines | 4988 |
44.41%
|
1402 |
85.24%
|
|
|
|
185 - Roman Numerals | 3229 |
40.51%
|
1040 |
82.69%
|
|
|
|
186 - Trip Routing | 4799 |
31.49%
|
1588 |
70.28%
|
|
|
|
187 - Transaction Processing | 3821 |
37.58%
|
1412 |
79.32%
|
|
|
|
188 - Perfect Hash | 5466 |
48.98%
|
1873 |
88.47%
|
|
|
|
189 - Pascal Program Lengths | 1130 |
22.83%
|
327 |
61.77%
|
|
|
|
190 - Circle Through Three Points | 18755 |
35.33%
|
5766 |
78.51%
|
|
|
|
191 - Intersection | 31019 |
22.93%
|
6211 |
69.41%
|
|
|
|
192 - Synchronous Design | 1201 |
30.31%
|
432 |
69.44%
|
|
|
|
193 - Graph Coloring | 24555 |
28.42%
|
5866 |
70.92%
|
|
|
|
194 - Triangle | 2767 |
17.13%
|
561 |
48.31%
|
|
|
|
195 - Anagram | 46175 |
25.93%
|
10848 |
69.60%
|
|
|
|
196 - Spreadsheet | 13556 |
25.58%
|
2325 |
76.04%
|
|
|
|
197 - Cube | 1586 |
19.67%
|
387 |
45.99%
|
|
|
|
198 - Peter's Calculator | 2998 |
19.85%
|
651 |
63.90%
|
|
|
|
199 - Partial differential equations | 1038 |
22.45%
|
405 |
44.94%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |