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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 950492 |
26.77%
|
146561 |
74.01%
|
|
|
|
101 - The Blocks Problem | 127198 |
26.12%
|
25653 |
70.46%
|
|
|
|
102 - Ecological Bin Packing | 111545 |
39.45%
|
32551 |
87.24%
|
|
|
103 - Stacking Boxes | 46535 |
26.87%
|
12459 |
61.43%
|
|
|
|
104 - Arbitrage | 34038 |
25.24%
|
7247 |
68.01%
|
|
|
|
105 - The Skyline Problem | 66128 |
26.13%
|
15837 |
69.29%
|
|
|
|
106 - Fermat vs. Pythagoras | 30289 |
34.13%
|
7153 |
67.38%
|
|
|
|
107 - The Cat in the Hat | 53748 |
21.76%
|
9295 |
68.24%
|
|
|
|
108 - Maximum Sum | 76090 |
44.69%
|
24292 |
83.61%
|
|
|
|
109 - SCUD Busters | 14333 |
32.40%
|
3809 |
68.47%
|
|
|
|
110 - Meta-Loopless Sorts | 13453 |
32.28%
|
3668 |
66.09%
|
|
|
|
111 - History Grading | 36804 |
45.27%
|
13722 |
77.85%
|
|
|
|
112 - Tree Summing | 39875 |
28.39%
|
8242 |
78.18%
|
|
|
|
113 - Power of Cryptography | 79643 |
41.01%
|
25287 |
89.07%
|
|
|
|
114 - Simulation Wizardry | 9127 |
32.42%
|
2643 |
75.14%
|
|
|
|
115 - Climbing Trees | 7785 |
35.17%
|
2342 |
81.17%
|
|
|
|
116 - Unidirectional TSP | 71440 |
25.55%
|
12909 |
72.84%
|
|
|
|
117 - The Postal Worker Rings Once | 10236 |
49.79%
|
4050 |
89.26%
|
|
|
|
118 - Mutant Flatworld Explorers | 31477 |
41.73%
|
10597 |
86.96%
|
|
|
|
119 - Greedy Gift Givers | 46015 |
29.06%
|
13350 |
74.96%
|
|
|
|
120 - Stacks of Flapjacks | 48691 |
41.39%
|
13322 |
87.36%
|
|
|
|
121 - Pipe Fitters | 8618 |
42.98%
|
3474 |
87.02%
|
|
|
|
122 - Trees on the level | 43682 |
29.74%
|
7771 |
74.80%
|
|
|
|
123 - Searching Quickly | 14886 |
35.79%
|
5022 |
75.47%
|
|
|
|
124 - Following Orders | 15927 |
39.34%
|
5218 |
78.92%
|
|
|
|
125 - Numbering Paths | 11428 |
29.73%
|
3269 |
74.76%
|
|
|
|
126 - The Errant Physicist | 4597 |
31.69%
|
1634 |
75.76%
|
|
|
|
127 - "Accordian" Patience | 19833 |
39.78%
|
4932 |
81.69%
|
|
|
|
128 - Software CRC | 20262 |
42.93%
|
4541 |
88.04%
|
|
|
|
129 - Krypton Factor | 16351 |
39.88%
|
3230 |
84.24%
|
|
|
|
130 - Roman Roulette | 10006 |
41.90%
|
4029 |
81.31%
|
|
|
|
131 - The Psychic Poker Player | 4408 |
50.14%
|
1898 |
88.30%
|
|
|
|
132 - Bumpy Objects | 4468 |
42.19%
|
1251 |
82.09%
|
|
|
|
133 - The Dole Queue | 29407 |
49.40%
|
8245 |
88.90%
|
|
|
|
134 - Loglan-A Logical Language | 3785 |
29.59%
|
1132 |
80.21%
|
|
|
|
135 - No Rectangles | 3398 |
27.99%
|
1274 |
53.14%
|
|
|
|
136 - Ugly Numbers | 129267 |
32.99%
|
31060 |
79.58%
|
|
|
|
137 - Polygons | 5069 |
21.78%
|
1152 |
62.15%
|
|
|
|
138 - Street Numbers | 22160 |
45.46%
|
9005 |
84.74%
|
|
|
|
139 - Telephone Tangles | 10375 |
16.19%
|
1738 |
49.08%
|
|
|
|
140 - Bandwidth | 17134 |
43.07%
|
3870 |
87.67%
|
|
|
|
141 - The Spot Game | 8997 |
44.83%
|
2756 |
89.88%
|
|
|
|
142 - Mouse Clicks | 7043 |
22.36%
|
2455 |
46.15%
|
|
|
|
143 - Orchard Trees | 20748 |
12.62%
|
2687 |
44.81%
|
|
|
|
144 - Student Grants | 7852 |
46.47%
|
3180 |
85.25%
|
|
|
|
145 - Gondwanaland Telecom | 10862 |
25.69%
|
2934 |
74.85%
|
|
|
|
146 - ID Codes | 36414 |
57.81%
|
16514 |
93.53%
|
|
|
|
147 - Dollars | 67107 |
29.03%
|
13146 |
75.51%
|
|
|
|
148 - Anagram checker | 5573 |
35.60%
|
1610 |
76.40%
|
|
|
|
149 - Forests | 1387 |
44.48%
|
478 |
74.90%
|
|
|
|
150 - Double Time | 2716 |
32.58%
|
886 |
65.91%
|
|
|
|
151 - Power Crisis | 28539 |
60.39%
|
12380 |
93.09%
|
|
|
|
152 - Tree's a Crowd | 12724 |
39.10%
|
3676 |
87.11%
|
|
|
|
153 - Permalex | 8080 |
29.55%
|
2674 |
70.72%
|
|
|
|
154 - Recycling | 7439 |
53.13%
|
3721 |
89.20%
|
|
|
|
155 - All Squares | 7559 |
50.35%
|
3437 |
86.18%
|
|
|
|
156 - Ananagrams | 36699 |
66.16%
|
12147 |
94.58%
|
|
|
|
157 - Route Finding | 2165 |
32.79%
|
721 |
80.17%
|
|
|
|
158 - Calendar | 3471 |
16.22%
|
794 |
57.30%
|
|
|
|
159 - Word Crosses | 5670 |
24.57%
|
1837 |
60.86%
|
|
|
|
160 - Factors and Factorials | 47354 |
31.87%
|
13034 |
83.13%
|
|
|
|
161 - Traffic Lights | 10870 |
38.57%
|
3638 |
88.87%
|
|
|
|
162 - Beggar My Neighbour | 6754 |
33.03%
|
1973 |
80.84%
|
|
|
|
163 - City Directions | 1894 |
14.78%
|
364 |
57.42%
|
|
|
|
164 - String Computer | 14308 |
31.53%
|
3093 |
75.43%
|
|
|
|
165 - Stamps | 4785 |
40.59%
|
1546 |
80.53%
|
|
|
|
166 - Making Change | 12467 |
39.49%
|
3284 |
86.24%
|
|
|
|
167 - The Sultan's Successors | 30286 |
46.66%
|
8865 |
90.54%
|
|
|
|
168 - Theseus and the Minotaur | 9790 |
34.04%
|
2127 |
73.91%
|
|
|
|
169 - Xenosemantics | 2140 |
19.95%
|
342 |
63.74%
|
|
|
|
170 - Clock Patience | 7455 |
45.29%
|
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 | 4127 |
40.37%
|
1231 |
72.71%
|
|
|
|
178 - Shuffling Patience | 1207 |
38.69%
|
455 |
76.26%
|
|
|
|
179 - Code Breaking | 2401 |
25.24%
|
647 |
72.49%
|
|
|
|
180 - Eeny Meeny | 2690 |
22.57%
|
701 |
43.37%
|
|
|
|
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 | 5003 |
44.37%
|
1407 |
85.07%
|
|
|
|
185 - Roman Numerals | 3236 |
40.54%
|
1044 |
82.66%
|
|
|
|
186 - Trip Routing | 4807 |
31.50%
|
1592 |
70.29%
|
|
|
|
187 - Transaction Processing | 3830 |
37.55%
|
1414 |
79.28%
|
|
|
|
188 - Perfect Hash | 5473 |
49.00%
|
1877 |
88.44%
|
|
|
|
189 - Pascal Program Lengths | 1136 |
22.71%
|
329 |
61.40%
|
|
|
|
190 - Circle Through Three Points | 18783 |
35.34%
|
5768 |
78.50%
|
|
|
|
191 - Intersection | 31143 |
22.99%
|
6215 |
69.40%
|
|
|
|
192 - Synchronous Design | 1202 |
30.28%
|
433 |
69.28%
|
|
|
|
193 - Graph Coloring | 24669 |
28.50%
|
5910 |
71.08%
|
|
|
|
194 - Triangle | 2770 |
17.11%
|
562 |
48.22%
|
|
|
|
195 - Anagram | 46454 |
25.92%
|
10859 |
69.60%
|
|
|
|
196 - Spreadsheet | 13585 |
25.60%
|
2331 |
76.06%
|
|
|
|
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 | |