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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 925135 |
26.61%
|
142782 |
73.76%
|
|
|
|
101 - The Blocks Problem | 123806 |
25.67%
|
24977 |
70.15%
|
|
|
|
102 - Ecological Bin Packing | 110348 |
39.37%
|
32228 |
87.25%
|
|
|
103 - Stacking Boxes | 45986 |
26.63%
|
12285 |
61.14%
|
|
|
|
104 - Arbitrage | 33618 |
25.19%
|
7127 |
68.04%
|
|
|
|
105 - The Skyline Problem | 64628 |
26.00%
|
15552 |
69.16%
|
|
|
|
106 - Fermat vs. Pythagoras | 29855 |
34.27%
|
7055 |
67.37%
|
|
|
|
107 - The Cat in the Hat | 53158 |
21.68%
|
9187 |
68.27%
|
|
|
|
108 - Maximum Sum | 73545 |
44.64%
|
23824 |
83.56%
|
|
|
|
109 - SCUD Busters | 14130 |
32.29%
|
3744 |
68.40%
|
|
|
|
110 - Meta-Loopless Sorts | 13029 |
31.98%
|
3589 |
66.01%
|
|
|
|
111 - History Grading | 35789 |
45.53%
|
13565 |
77.83%
|
|
|
|
112 - Tree Summing | 39438 |
28.26%
|
8120 |
78.15%
|
|
|
|
113 - Power of Cryptography | 78004 |
40.97%
|
24814 |
89.12%
|
|
|
|
114 - Simulation Wizardry | 8963 |
32.54%
|
2604 |
75.31%
|
|
|
|
115 - Climbing Trees | 7653 |
35.27%
|
2303 |
81.42%
|
|
|
|
116 - Unidirectional TSP | 70230 |
25.34%
|
12691 |
72.63%
|
|
|
|
117 - The Postal Worker Rings Once | 10047 |
49.70%
|
3965 |
89.36%
|
|
|
|
118 - Mutant Flatworld Explorers | 28381 |
41.87%
|
10057 |
86.83%
|
|
|
|
119 - Greedy Gift Givers | 44816 |
28.85%
|
13162 |
74.78%
|
|
|
|
120 - Stacks of Flapjacks | 47080 |
41.10%
|
12728 |
87.15%
|
|
|
|
121 - Pipe Fitters | 8407 |
43.10%
|
3411 |
87.28%
|
|
|
|
122 - Trees on the level | 41939 |
29.44%
|
7533 |
74.58%
|
|
|
|
123 - Searching Quickly | 14705 |
35.59%
|
4938 |
75.44%
|
|
|
|
124 - Following Orders | 14932 |
39.16%
|
5083 |
78.75%
|
|
|
|
125 - Numbering Paths | 11231 |
29.70%
|
3225 |
74.76%
|
|
|
|
126 - The Errant Physicist | 4530 |
31.68%
|
1617 |
75.82%
|
|
|
|
127 - "Accordian" Patience | 19149 |
40.03%
|
4829 |
81.57%
|
|
|
|
128 - Software CRC | 20106 |
42.89%
|
4479 |
88.17%
|
|
|
|
129 - Krypton Factor | 15829 |
39.85%
|
3140 |
84.33%
|
|
|
|
130 - Roman Roulette | 9782 |
42.27%
|
3985 |
81.56%
|
|
|
|
131 - The Psychic Poker Player | 4335 |
50.01%
|
1869 |
88.60%
|
|
|
|
132 - Bumpy Objects | 4433 |
42.07%
|
1235 |
82.11%
|
|
|
|
133 - The Dole Queue | 28314 |
49.59%
|
8048 |
89.00%
|
|
|
|
134 - Loglan-A Logical Language | 3755 |
29.56%
|
1122 |
80.30%
|
|
|
|
135 - No Rectangles | 3355 |
27.75%
|
1253 |
52.99%
|
|
|
|
136 - Ugly Numbers | 124288 |
32.85%
|
30437 |
79.42%
|
|
|
|
137 - Polygons | 4915 |
21.57%
|
1131 |
62.16%
|
|
|
|
138 - Street Numbers | 21971 |
45.56%
|
8950 |
84.77%
|
|
|
|
139 - Telephone Tangles | 10288 |
16.15%
|
1719 |
48.98%
|
|
|
|
140 - Bandwidth | 16726 |
42.99%
|
3788 |
87.70%
|
|
|
|
141 - The Spot Game | 8843 |
44.56%
|
2698 |
89.84%
|
|
|
|
142 - Mouse Clicks | 7012 |
22.22%
|
2441 |
45.92%
|
|
|
|
143 - Orchard Trees | 20628 |
12.58%
|
2667 |
44.69%
|
|
|
|
144 - Student Grants | 7662 |
46.70%
|
3113 |
85.42%
|
|
|
|
145 - Gondwanaland Telecom | 10588 |
25.58%
|
2890 |
74.78%
|
|
|
|
146 - ID Codes | 35630 |
57.65%
|
16313 |
93.56%
|
|
|
|
147 - Dollars | 64352 |
28.59%
|
12887 |
75.16%
|
|
|
|
148 - Anagram checker | 5535 |
35.39%
|
1591 |
76.43%
|
|
|
|
149 - Forests | 1315 |
45.78%
|
460 |
75.87%
|
|
|
|
150 - Double Time | 2673 |
32.59%
|
864 |
66.32%
|
|
|
|
151 - Power Crisis | 27196 |
60.51%
|
12067 |
93.17%
|
|
|
|
152 - Tree's a Crowd | 12489 |
39.23%
|
3626 |
87.12%
|
|
|
|
153 - Permalex | 7964 |
29.47%
|
2641 |
70.73%
|
|
|
|
154 - Recycling | 7298 |
53.29%
|
3663 |
89.27%
|
|
|
|
155 - All Squares | 7476 |
50.37%
|
3405 |
86.17%
|
|
|
|
156 - Ananagrams | 35194 |
65.97%
|
11811 |
94.56%
|
|
|
|
157 - Route Finding | 2142 |
32.63%
|
709 |
80.11%
|
|
|
|
158 - Calendar | 3385 |
16.19%
|
776 |
57.35%
|
|
|
|
159 - Word Crosses | 5634 |
24.41%
|
1820 |
60.71%
|
|
|
|
160 - Factors and Factorials | 46499 |
31.81%
|
12908 |
83.02%
|
|
|
|
161 - Traffic Lights | 10599 |
38.66%
|
3553 |
89.14%
|
|
|
|
162 - Beggar My Neighbour | 6395 |
33.53%
|
1915 |
81.20%
|
|
|
|
163 - City Directions | 1870 |
14.76%
|
353 |
58.36%
|
|
|
|
164 - String Computer | 13944 |
31.50%
|
3066 |
75.34%
|
|
|
|
165 - Stamps | 4453 |
41.14%
|
1494 |
80.79%
|
|
|
|
166 - Making Change | 11728 |
39.22%
|
3192 |
86.09%
|
|
|
|
167 - The Sultan's Successors | 28792 |
46.90%
|
8706 |
90.54%
|
|
|
|
168 - Theseus and the Minotaur | 9588 |
33.72%
|
2089 |
73.58%
|
|
|
|
169 - Xenosemantics | 2115 |
20.00%
|
332 |
64.76%
|
|
|
|
170 - Clock Patience | 7339 |
45.48%
|
2740 |
90.33%
|
|
|
|
171 - Car Trialling | 3480 |
14.22%
|
569 |
70.12%
|
|
|
|
172 - Calculator Language | 2699 |
25.82%
|
779 |
69.83%
|
|
|
|
173 - Network Wars | 3080 |
16.88%
|
642 |
44.86%
|
|
|
|
174 - Strategy | 1317 |
39.26%
|
552 |
79.71%
|
|
|
|
175 - Keywords | 2359 |
17.51%
|
573 |
47.47%
|
|
|
|
176 - City Navigation | 979 |
31.97%
|
307 |
80.78%
|
|
|
|
177 - Paper Folding | 3779 |
39.61%
|
1193 |
72.25%
|
|
|
|
178 - Shuffling Patience | 1193 |
38.89%
|
444 |
77.48%
|
|
|
|
179 - Code Breaking | 2392 |
25.29%
|
642 |
72.90%
|
|
|
|
180 - Eeny Meeny | 2663 |
22.57%
|
694 |
43.37%
|
|
|
|
181 - Hearts | 1249 |
48.92%
|
616 |
84.09%
|
|
|
|
182 - Bonus Bonds | 913 |
42.72%
|
444 |
79.05%
|
|
|
|
183 - Bit Maps | 7253 |
26.62%
|
1970 |
76.40%
|
|
|
|
184 - Laser Lines | 4904 |
44.58%
|
1393 |
85.28%
|
|
|
|
185 - Roman Numerals | 3127 |
40.87%
|
1023 |
82.80%
|
|
|
|
186 - Trip Routing | 4778 |
31.44%
|
1580 |
70.32%
|
|
|
|
187 - Transaction Processing | 3795 |
37.63%
|
1402 |
79.39%
|
|
|
|
188 - Perfect Hash | 5346 |
49.14%
|
1842 |
88.38%
|
|
|
|
189 - Pascal Program Lengths | 1117 |
22.83%
|
320 |
62.50%
|
|
|
|
190 - Circle Through Three Points | 18577 |
35.24%
|
5734 |
78.44%
|
|
|
|
191 - Intersection | 30645 |
22.90%
|
6163 |
69.37%
|
|
|
|
192 - Synchronous Design | 1179 |
30.53%
|
428 |
69.63%
|
|
|
|
193 - Graph Coloring | 23902 |
28.62%
|
5788 |
70.87%
|
|
|
|
194 - Triangle | 2761 |
17.06%
|
557 |
48.47%
|
|
|
|
195 - Anagram | 44875 |
25.87%
|
10773 |
69.64%
|
|
|
|
196 - Spreadsheet | 13388 |
25.53%
|
2295 |
76.17%
|
|
|
|
197 - Cube | 1571 |
19.80%
|
384 |
46.09%
|
|
|
|
198 - Peter's Calculator | 2979 |
19.60%
|
643 |
63.61%
|
|
|
|
199 - Partial differential equations | 1031 |
22.21%
|
401 |
44.89%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |