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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 954207 |
26.81%
|
146979 |
74.06%
|
|
|
|
101 - The Blocks Problem | 127544 |
26.19%
|
25691 |
70.48%
|
|
|
|
102 - Ecological Bin Packing | 111715 |
39.48%
|
32576 |
87.25%
|
|
|
103 - Stacking Boxes | 46570 |
26.90%
|
12474 |
61.46%
|
|
|
|
104 - Arbitrage | 34072 |
25.26%
|
7254 |
68.03%
|
|
|
|
105 - The Skyline Problem | 66258 |
26.16%
|
15862 |
69.34%
|
|
|
|
106 - Fermat vs. Pythagoras | 30337 |
34.13%
|
7161 |
67.38%
|
|
|
|
107 - The Cat in the Hat | 53786 |
21.78%
|
9304 |
68.27%
|
|
|
|
108 - Maximum Sum | 76369 |
44.74%
|
24325 |
83.63%
|
|
|
|
109 - SCUD Busters | 14349 |
32.43%
|
3813 |
68.50%
|
|
|
|
110 - Meta-Loopless Sorts | 13467 |
32.32%
|
3673 |
66.10%
|
|
|
|
111 - History Grading | 36901 |
45.31%
|
13738 |
77.87%
|
|
|
|
112 - Tree Summing | 40078 |
28.39%
|
8249 |
78.19%
|
|
|
|
113 - Power of Cryptography | 79722 |
41.03%
|
25308 |
89.07%
|
|
|
|
114 - Simulation Wizardry | 9139 |
32.47%
|
2647 |
75.10%
|
|
|
|
115 - Climbing Trees | 7796 |
35.21%
|
2345 |
81.19%
|
|
|
|
116 - Unidirectional TSP | 71525 |
25.58%
|
12927 |
72.87%
|
|
|
|
117 - The Postal Worker Rings Once | 10279 |
49.87%
|
4056 |
89.30%
|
|
|
|
118 - Mutant Flatworld Explorers | 31957 |
41.92%
|
10655 |
86.99%
|
|
|
|
119 - Greedy Gift Givers | 46059 |
29.09%
|
13362 |
74.98%
|
|
|
|
120 - Stacks of Flapjacks | 49066 |
41.59%
|
13508 |
87.50%
|
|
|
|
121 - Pipe Fitters | 8632 |
43.00%
|
3476 |
87.03%
|
|
|
|
122 - Trees on the level | 43868 |
29.81%
|
7791 |
74.84%
|
|
|
|
123 - Searching Quickly | 14897 |
35.81%
|
5027 |
75.47%
|
|
|
|
124 - Following Orders | 16018 |
39.42%
|
5229 |
78.94%
|
|
|
|
125 - Numbering Paths | 11447 |
29.77%
|
3273 |
74.79%
|
|
|
|
126 - The Errant Physicist | 4617 |
31.73%
|
1639 |
75.78%
|
|
|
|
127 - "Accordian" Patience | 19877 |
39.81%
|
4936 |
81.71%
|
|
|
|
128 - Software CRC | 20283 |
42.93%
|
4546 |
88.03%
|
|
|
|
129 - Krypton Factor | 16384 |
39.88%
|
3235 |
84.27%
|
|
|
|
130 - Roman Roulette | 10052 |
41.80%
|
4035 |
81.31%
|
|
|
|
131 - The Psychic Poker Player | 4421 |
50.19%
|
1903 |
88.33%
|
|
|
|
132 - Bumpy Objects | 4476 |
42.27%
|
1254 |
82.14%
|
|
|
|
133 - The Dole Queue | 29502 |
49.40%
|
8257 |
88.89%
|
|
|
|
134 - Loglan-A Logical Language | 3801 |
29.65%
|
1136 |
80.37%
|
|
|
|
135 - No Rectangles | 3406 |
28.13%
|
1278 |
53.29%
|
|
|
|
136 - Ugly Numbers | 129551 |
32.99%
|
31089 |
79.58%
|
|
|
|
137 - Polygons | 5089 |
21.83%
|
1157 |
62.32%
|
|
|
|
138 - Street Numbers | 22170 |
45.48%
|
9009 |
84.76%
|
|
|
|
139 - Telephone Tangles | 10443 |
16.16%
|
1742 |
49.14%
|
|
|
|
140 - Bandwidth | 17155 |
43.08%
|
3874 |
87.66%
|
|
|
|
141 - The Spot Game | 9040 |
44.89%
|
2764 |
89.91%
|
|
|
|
142 - Mouse Clicks | 7054 |
22.43%
|
2460 |
46.22%
|
|
|
|
143 - Orchard Trees | 20769 |
12.63%
|
2692 |
44.84%
|
|
|
|
144 - Student Grants | 7875 |
46.43%
|
3185 |
85.24%
|
|
|
|
145 - Gondwanaland Telecom | 10934 |
25.75%
|
2947 |
74.86%
|
|
|
|
146 - ID Codes | 36508 |
57.84%
|
16530 |
93.53%
|
|
|
|
147 - Dollars | 67347 |
29.10%
|
13181 |
75.57%
|
|
|
|
148 - Anagram checker | 5588 |
35.63%
|
1614 |
76.46%
|
|
|
|
149 - Forests | 1400 |
44.43%
|
480 |
75.21%
|
|
|
|
150 - Double Time | 2728 |
32.51%
|
888 |
65.88%
|
|
|
|
151 - Power Crisis | 28704 |
60.44%
|
12414 |
93.10%
|
|
|
|
152 - Tree's a Crowd | 12733 |
39.13%
|
3680 |
87.12%
|
|
|
|
153 - Permalex | 8094 |
29.57%
|
2678 |
70.72%
|
|
|
|
154 - Recycling | 7470 |
53.12%
|
3733 |
89.23%
|
|
|
|
155 - All Squares | 7565 |
50.39%
|
3440 |
86.19%
|
|
|
|
156 - Ananagrams | 36767 |
66.18%
|
12159 |
94.60%
|
|
|
|
157 - Route Finding | 2174 |
32.84%
|
724 |
80.11%
|
|
|
|
158 - Calendar | 3475 |
16.32%
|
796 |
57.41%
|
|
|
|
159 - Word Crosses | 5677 |
24.61%
|
1840 |
60.87%
|
|
|
|
160 - Factors and Factorials | 47494 |
31.88%
|
13046 |
83.14%
|
|
|
|
161 - Traffic Lights | 10890 |
38.62%
|
3648 |
88.90%
|
|
|
|
162 - Beggar My Neighbour | 6772 |
33.05%
|
1977 |
80.83%
|
|
|
|
163 - City Directions | 1903 |
14.82%
|
367 |
57.22%
|
|
|
|
164 - String Computer | 14336 |
31.54%
|
3100 |
75.42%
|
|
|
|
165 - Stamps | 4813 |
40.79%
|
1556 |
80.59%
|
|
|
|
166 - Making Change | 12552 |
39.56%
|
3294 |
86.28%
|
|
|
|
167 - The Sultan's Successors | 30580 |
46.85%
|
8879 |
90.53%
|
|
|
|
168 - Theseus and the Minotaur | 9804 |
34.10%
|
2131 |
73.96%
|
|
|
|
169 - Xenosemantics | 2154 |
19.87%
|
344 |
63.66%
|
|
|
|
170 - Clock Patience | 7461 |
45.30%
|
2774 |
90.23%
|
|
|
|
171 - Car Trialling | 3527 |
14.37%
|
584 |
69.69%
|
|
|
|
172 - Calculator Language | 2745 |
26.19%
|
795 |
69.69%
|
|
|
|
173 - Network Wars | 3133 |
17.49%
|
654 |
46.02%
|
|
|
|
174 - Strategy | 1339 |
39.36%
|
563 |
79.22%
|
|
|
|
175 - Keywords | 2410 |
17.59%
|
586 |
47.61%
|
|
|
|
176 - City Navigation | 993 |
31.62%
|
314 |
79.30%
|
|
|
|
177 - Paper Folding | 4153 |
40.55%
|
1245 |
72.93%
|
|
|
|
178 - Shuffling Patience | 1211 |
38.56%
|
457 |
75.93%
|
|
|
|
179 - Code Breaking | 2422 |
25.10%
|
650 |
72.31%
|
|
|
|
180 - Eeny Meeny | 2691 |
22.56%
|
702 |
43.30%
|
|
|
|
181 - Hearts | 1266 |
48.97%
|
627 |
83.89%
|
|
|
|
182 - Bonus Bonds | 925 |
42.81%
|
450 |
78.67%
|
|
|
|
183 - Bit Maps | 7820 |
26.96%
|
2032 |
76.43%
|
|
|
|
184 - Laser Lines | 5005 |
44.40%
|
1407 |
85.07%
|
|
|
|
185 - Roman Numerals | 3238 |
40.55%
|
1046 |
82.60%
|
|
|
|
186 - Trip Routing | 4808 |
31.49%
|
1593 |
70.24%
|
|
|
|
187 - Transaction Processing | 3831 |
37.56%
|
1415 |
79.29%
|
|
|
|
188 - Perfect Hash | 5482 |
49.05%
|
1884 |
88.48%
|
|
|
|
189 - Pascal Program Lengths | 1138 |
22.85%
|
331 |
61.63%
|
|
|
|
190 - Circle Through Three Points | 18800 |
35.34%
|
5771 |
78.51%
|
|
|
|
191 - Intersection | 31185 |
22.99%
|
6221 |
69.39%
|
|
|
|
192 - Synchronous Design | 1205 |
30.46%
|
435 |
69.43%
|
|
|
|
193 - Graph Coloring | 24732 |
28.50%
|
5918 |
71.09%
|
|
|
|
194 - Triangle | 2808 |
17.31%
|
564 |
48.23%
|
|
|
|
195 - Anagram | 46673 |
25.96%
|
10868 |
69.60%
|
|
|
|
196 - Spreadsheet | 13586 |
25.61%
|
2332 |
76.07%
|
|
|
|
197 - Cube | 1605 |
19.94%
|
390 |
46.41%
|
|
|
|
198 - Peter's Calculator | 3003 |
19.85%
|
654 |
63.76%
|
|
|
|
199 - Partial differential equations | 1040 |
22.50%
|
407 |
44.96%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |