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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 945141 |
26.70%
|
145816 |
73.97%
|
|
|
|
101 - The Blocks Problem | 126609 |
26.01%
|
25528 |
70.39%
|
|
|
|
102 - Ecological Bin Packing | 111326 |
39.41%
|
32494 |
87.24%
|
|
|
103 - Stacking Boxes | 46404 |
26.80%
|
12427 |
61.36%
|
|
|
|
104 - Arbitrage | 33933 |
25.21%
|
7213 |
68.02%
|
|
|
|
105 - The Skyline Problem | 65832 |
26.08%
|
15786 |
69.23%
|
|
|
|
106 - Fermat vs. Pythagoras | 30231 |
34.13%
|
7131 |
67.38%
|
|
|
|
107 - The Cat in the Hat | 53455 |
21.73%
|
9262 |
68.26%
|
|
|
|
108 - Maximum Sum | 75374 |
44.68%
|
24200 |
83.60%
|
|
|
|
109 - SCUD Busters | 14290 |
32.40%
|
3797 |
68.45%
|
|
|
|
110 - Meta-Loopless Sorts | 13262 |
32.14%
|
3658 |
66.10%
|
|
|
|
111 - History Grading | 36295 |
45.50%
|
13683 |
77.86%
|
|
|
|
112 - Tree Summing | 39711 |
28.32%
|
8197 |
78.17%
|
|
|
|
113 - Power of Cryptography | 79338 |
41.02%
|
25211 |
89.10%
|
|
|
|
114 - Simulation Wizardry | 9091 |
32.48%
|
2633 |
75.24%
|
|
|
|
115 - Climbing Trees | 7751 |
35.21%
|
2332 |
81.26%
|
|
|
|
116 - Unidirectional TSP | 71282 |
25.50%
|
12870 |
72.80%
|
|
|
|
117 - The Postal Worker Rings Once | 10200 |
49.76%
|
4032 |
89.31%
|
|
|
|
118 - Mutant Flatworld Explorers | 30446 |
41.78%
|
10434 |
86.84%
|
|
|
|
119 - Greedy Gift Givers | 45701 |
28.95%
|
13311 |
74.90%
|
|
|
|
120 - Stacks of Flapjacks | 48501 |
41.34%
|
13273 |
87.36%
|
|
|
|
121 - Pipe Fitters | 8601 |
42.98%
|
3466 |
87.07%
|
|
|
|
122 - Trees on the level | 43298 |
29.68%
|
7713 |
74.73%
|
|
|
|
123 - Searching Quickly | 14855 |
35.74%
|
5007 |
75.45%
|
|
|
|
124 - Following Orders | 15751 |
39.26%
|
5194 |
78.86%
|
|
|
|
125 - Numbering Paths | 11362 |
29.76%
|
3256 |
74.75%
|
|
|
|
126 - The Errant Physicist | 4575 |
31.80%
|
1630 |
75.83%
|
|
|
|
127 - "Accordian" Patience | 19529 |
40.04%
|
4911 |
81.65%
|
|
|
|
128 - Software CRC | 20236 |
42.91%
|
4530 |
88.04%
|
|
|
|
129 - Krypton Factor | 16292 |
39.84%
|
3214 |
84.23%
|
|
|
|
130 - Roman Roulette | 9900 |
42.10%
|
4017 |
81.33%
|
|
|
|
131 - The Psychic Poker Player | 4373 |
50.10%
|
1890 |
88.41%
|
|
|
|
132 - Bumpy Objects | 4452 |
42.21%
|
1246 |
82.10%
|
|
|
|
133 - The Dole Queue | 29188 |
49.50%
|
8206 |
88.95%
|
|
|
|
134 - Loglan-A Logical Language | 3778 |
29.54%
|
1130 |
80.18%
|
|
|
|
135 - No Rectangles | 3380 |
27.84%
|
1269 |
53.11%
|
|
|
|
136 - Ugly Numbers | 128128 |
32.96%
|
30972 |
79.56%
|
|
|
|
137 - Polygons | 5052 |
21.75%
|
1149 |
62.14%
|
|
|
|
138 - Street Numbers | 22145 |
45.45%
|
8995 |
84.76%
|
|
|
|
139 - Telephone Tangles | 10368 |
16.17%
|
1736 |
49.08%
|
|
|
|
140 - Bandwidth | 17059 |
43.07%
|
3857 |
87.68%
|
|
|
|
141 - The Spot Game | 8978 |
44.79%
|
2745 |
89.95%
|
|
|
|
142 - Mouse Clicks | 7029 |
22.34%
|
2451 |
46.10%
|
|
|
|
143 - Orchard Trees | 20723 |
12.60%
|
2683 |
44.76%
|
|
|
|
144 - Student Grants | 7843 |
46.45%
|
3174 |
85.26%
|
|
|
|
145 - Gondwanaland Telecom | 10761 |
25.60%
|
2918 |
74.81%
|
|
|
|
146 - ID Codes | 36280 |
57.75%
|
16472 |
93.53%
|
|
|
|
147 - Dollars | 66565 |
28.94%
|
13096 |
75.46%
|
|
|
|
148 - Anagram checker | 5571 |
35.60%
|
1608 |
76.43%
|
|
|
|
149 - Forests | 1355 |
45.31%
|
473 |
75.26%
|
|
|
|
150 - Double Time | 2712 |
32.60%
|
882 |
66.10%
|
|
|
|
151 - Power Crisis | 28272 |
60.43%
|
12318 |
93.11%
|
|
|
|
152 - Tree's a Crowd | 12702 |
39.10%
|
3671 |
87.14%
|
|
|
|
153 - Permalex | 8060 |
29.52%
|
2669 |
70.70%
|
|
|
|
154 - Recycling | 7416 |
53.11%
|
3708 |
89.21%
|
|
|
|
155 - All Squares | 7544 |
50.38%
|
3433 |
86.22%
|
|
|
|
156 - Ananagrams | 36232 |
66.22%
|
12072 |
94.57%
|
|
|
|
157 - Route Finding | 2158 |
32.85%
|
719 |
80.25%
|
|
|
|
158 - Calendar | 3454 |
16.13%
|
791 |
57.27%
|
|
|
|
159 - Word Crosses | 5663 |
24.56%
|
1834 |
60.91%
|
|
|
|
160 - Factors and Factorials | 47049 |
31.86%
|
13010 |
83.12%
|
|
|
|
161 - Traffic Lights | 10822 |
38.63%
|
3626 |
89.00%
|
|
|
|
162 - Beggar My Neighbour | 6684 |
33.18%
|
1962 |
81.14%
|
|
|
|
163 - City Directions | 1892 |
14.80%
|
362 |
57.73%
|
|
|
|
164 - String Computer | 14086 |
31.49%
|
3089 |
75.43%
|
|
|
|
165 - Stamps | 4759 |
40.64%
|
1537 |
80.68%
|
|
|
|
166 - Making Change | 12377 |
39.40%
|
3262 |
86.24%
|
|
|
|
167 - The Sultan's Successors | 29789 |
46.60%
|
8822 |
90.51%
|
|
|
|
168 - Theseus and the Minotaur | 9750 |
34.01%
|
2122 |
73.89%
|
|
|
|
169 - Xenosemantics | 2133 |
20.02%
|
339 |
64.31%
|
|
|
|
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 | 4975 |
44.50%
|
1401 |
85.22%
|
|
|
|
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 | 18752 |
35.32%
|
5765 |
78.51%
|
|
|
|
191 - Intersection | 31012 |
22.92%
|
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 | 46174 |
25.93%
|
10847 |
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 | |