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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 909856 |
26.59%
|
140372 |
73.71%
|
|
|
|
101 - The Blocks Problem | 121959 |
25.53%
|
24591 |
70.17%
|
|
|
|
102 - Ecological Bin Packing | 109361 |
39.37%
|
31922 |
87.30%
|
|
|
103 - Stacking Boxes | 45629 |
26.45%
|
12149 |
60.89%
|
|
|
|
104 - Arbitrage | 33186 |
25.09%
|
7015 |
68.44%
|
|
|
|
105 - The Skyline Problem | 63489 |
25.96%
|
15334 |
69.08%
|
|
|
|
106 - Fermat vs. Pythagoras | 29735 |
34.29%
|
7015 |
67.44%
|
|
|
|
107 - The Cat in the Hat | 52836 |
21.58%
|
9141 |
68.23%
|
|
|
|
108 - Maximum Sum | 71444 |
44.57%
|
23499 |
83.50%
|
|
|
|
109 - SCUD Busters | 13998 |
32.35%
|
3679 |
69.12%
|
|
|
|
110 - Meta-Loopless Sorts | 12696 |
31.55%
|
3498 |
65.49%
|
|
|
|
111 - History Grading | 35318 |
45.39%
|
13425 |
77.73%
|
|
|
|
112 - Tree Summing | 39241 |
28.14%
|
8036 |
78.07%
|
|
|
|
113 - Power of Cryptography | 76617 |
40.93%
|
24377 |
89.12%
|
|
|
|
114 - Simulation Wizardry | 8924 |
32.51%
|
2585 |
75.36%
|
|
|
|
115 - Climbing Trees | 7631 |
35.20%
|
2290 |
81.40%
|
|
|
|
116 - Unidirectional TSP | 67733 |
25.09%
|
12469 |
72.48%
|
|
|
|
117 - The Postal Worker Rings Once | 9896 |
49.66%
|
3889 |
89.43%
|
|
|
|
118 - Mutant Flatworld Explorers | 27015 |
41.24%
|
9718 |
86.64%
|
|
|
|
119 - Greedy Gift Givers | 44212 |
28.78%
|
12976 |
74.69%
|
|
|
|
120 - Stacks of Flapjacks | 46201 |
40.96%
|
12413 |
87.17%
|
|
|
|
121 - Pipe Fitters | 8295 |
42.70%
|
3328 |
87.08%
|
|
|
|
122 - Trees on the level | 40642 |
29.31%
|
7367 |
74.52%
|
|
|
|
123 - Searching Quickly | 14566 |
35.38%
|
4859 |
75.39%
|
|
|
|
124 - Following Orders | 14514 |
39.16%
|
4973 |
78.50%
|
|
|
|
125 - Numbering Paths | 11101 |
29.34%
|
3151 |
74.36%
|
|
|
|
126 - The Errant Physicist | 4520 |
31.62%
|
1610 |
75.84%
|
|
|
|
127 - "Accordian" Patience | 18938 |
39.88%
|
4764 |
81.57%
|
|
|
|
128 - Software CRC | 19922 |
42.89%
|
4401 |
88.55%
|
|
|
|
129 - Krypton Factor | 15456 |
39.58%
|
3076 |
84.20%
|
|
|
|
130 - Roman Roulette | 9692 |
42.26%
|
3955 |
81.62%
|
|
|
|
131 - The Psychic Poker Player | 4322 |
50.05%
|
1862 |
88.67%
|
|
|
|
132 - Bumpy Objects | 4379 |
41.49%
|
1187 |
81.72%
|
|
|
|
133 - The Dole Queue | 27544 |
49.52%
|
7870 |
88.93%
|
|
|
|
134 - Loglan-A Logical Language | 3724 |
29.19%
|
1097 |
80.31%
|
|
|
|
135 - No Rectangles | 3304 |
27.42%
|
1216 |
52.63%
|
|
|
|
136 - Ugly Numbers | 121371 |
32.74%
|
29927 |
79.24%
|
|
|
|
137 - Polygons | 4880 |
21.50%
|
1127 |
62.11%
|
|
|
|
138 - Street Numbers | 21813 |
45.61%
|
8888 |
84.79%
|
|
|
|
139 - Telephone Tangles | 10222 |
16.24%
|
1677 |
50.09%
|
|
|
|
140 - Bandwidth | 16371 |
43.17%
|
3689 |
88.64%
|
|
|
|
141 - The Spot Game | 8699 |
44.15%
|
2626 |
89.87%
|
|
|
|
142 - Mouse Clicks | 6982 |
22.24%
|
2435 |
45.91%
|
|
|
|
143 - Orchard Trees | 20578 |
12.42%
|
2628 |
43.99%
|
|
|
|
144 - Student Grants | 7523 |
46.47%
|
3042 |
85.27%
|
|
|
|
145 - Gondwanaland Telecom | 10436 |
25.21%
|
2824 |
74.33%
|
|
|
|
146 - ID Codes | 35118 |
57.54%
|
16128 |
93.57%
|
|
|
|
147 - Dollars | 62985 |
28.48%
|
12752 |
75.01%
|
|
|
|
148 - Anagram checker | 5483 |
35.29%
|
1553 |
77.01%
|
|
|
|
149 - Forests | 1280 |
45.08%
|
431 |
75.87%
|
|
|
|
150 - Double Time | 2614 |
31.75%
|
823 |
65.01%
|
|
|
|
151 - Power Crisis | 26532 |
60.49%
|
11852 |
93.14%
|
|
|
|
152 - Tree's a Crowd | 12427 |
39.08%
|
3583 |
87.02%
|
|
|
|
153 - Permalex | 7914 |
29.21%
|
2609 |
70.49%
|
|
|
|
154 - Recycling | 7193 |
53.62%
|
3616 |
89.74%
|
|
|
|
155 - All Squares | 7347 |
49.90%
|
3353 |
86.04%
|
|
|
|
156 - Ananagrams | 34455 |
65.81%
|
11543 |
94.54%
|
|
|
|
157 - Route Finding | 2115 |
31.87%
|
689 |
79.54%
|
|
|
|
158 - Calendar | 3331 |
16.15%
|
757 |
57.73%
|
|
|
|
159 - Word Crosses | 5622 |
24.40%
|
1816 |
60.68%
|
|
|
|
160 - Factors and Factorials | 45913 |
31.79%
|
12794 |
82.93%
|
|
|
|
161 - Traffic Lights | 10352 |
38.44%
|
3460 |
88.93%
|
|
|
|
162 - Beggar My Neighbour | 6298 |
33.65%
|
1899 |
81.25%
|
|
|
|
163 - City Directions | 1858 |
14.85%
|
344 |
59.88%
|
|
|
|
164 - String Computer | 13791 |
31.40%
|
3018 |
75.28%
|
|
|
|
165 - Stamps | 4349 |
40.93%
|
1452 |
80.79%
|
|
|
|
166 - Making Change | 11437 |
38.87%
|
3131 |
86.11%
|
|
|
|
167 - The Sultan's Successors | 27569 |
47.60%
|
8606 |
90.58%
|
|
|
|
168 - Theseus and the Minotaur | 9520 |
33.71%
|
2071 |
73.68%
|
|
|
|
169 - Xenosemantics | 2114 |
20.01%
|
331 |
64.95%
|
|
|
|
170 - Clock Patience | 7297 |
45.40%
|
2713 |
90.38%
|
|
|
|
171 - Car Trialling | 3475 |
14.13%
|
565 |
70.09%
|
|
|
|
172 - Calculator Language | 2688 |
25.74%
|
775 |
69.81%
|
|
|
|
173 - Network Wars | 3079 |
16.89%
|
642 |
44.86%
|
|
|
|
174 - Strategy | 1313 |
39.22%
|
548 |
79.93%
|
|
|
|
175 - Keywords | 2359 |
17.51%
|
573 |
47.47%
|
|
|
|
176 - City Navigation | 979 |
31.97%
|
307 |
80.78%
|
|
|
|
177 - Paper Folding | 3686 |
39.53%
|
1174 |
71.89%
|
|
|
|
178 - Shuffling Patience | 1193 |
38.89%
|
444 |
77.48%
|
|
|
|
179 - Code Breaking | 2360 |
25.38%
|
639 |
72.77%
|
|
|
|
180 - Eeny Meeny | 2662 |
22.58%
|
693 |
43.43%
|
|
|
|
181 - Hearts | 1242 |
48.87%
|
610 |
84.26%
|
|
|
|
182 - Bonus Bonds | 909 |
42.90%
|
442 |
79.41%
|
|
|
|
183 - Bit Maps | 7028 |
26.58%
|
1943 |
76.43%
|
|
|
|
184 - Laser Lines | 4889 |
44.49%
|
1384 |
85.33%
|
|
|
|
185 - Roman Numerals | 2971 |
41.97%
|
991 |
83.85%
|
|
|
|
186 - Trip Routing | 4757 |
31.39%
|
1574 |
70.39%
|
|
|
|
187 - Transaction Processing | 3761 |
37.60%
|
1389 |
79.27%
|
|
|
|
188 - Perfect Hash | 5300 |
49.15%
|
1812 |
88.74%
|
|
|
|
189 - Pascal Program Lengths | 1113 |
22.91%
|
318 |
62.89%
|
|
|
|
190 - Circle Through Three Points | 18503 |
35.18%
|
5716 |
78.41%
|
|
|
|
191 - Intersection | 30465 |
22.91%
|
6131 |
69.34%
|
|
|
|
192 - Synchronous Design | 1179 |
30.53%
|
428 |
69.63%
|
|
|
|
193 - Graph Coloring | 23485 |
28.68%
|
5724 |
70.75%
|
|
|
|
194 - Triangle | 2732 |
16.36%
|
556 |
47.48%
|
|
|
|
195 - Anagram | 44500 |
25.80%
|
10702 |
69.59%
|
|
|
|
196 - Spreadsheet | 13211 |
25.43%
|
2270 |
76.08%
|
|
|
|
197 - Cube | 1559 |
19.82%
|
383 |
45.95%
|
|
|
|
198 - Peter's Calculator | 2974 |
19.60%
|
638 |
63.95%
|
|
|
|
199 - Partial differential equations | 1025 |
22.05%
|
397 |
44.58%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |