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Browse Problems
Title | Total Submissions / Solving % | Total Users / Solving % | ||||
100 - The 3n + 1 problem | 923043 |
26.61%
|
142490 |
73.75%
|
||
101 - The Blocks Problem | 123581 |
25.66%
|
24929 |
70.18%
|
||
102 - Ecological Bin Packing | 110185 |
39.37%
|
32203 |
87.27%
|
||
103 - Stacking Boxes | 45967 |
26.62%
|
12280 |
61.12%
|
||
104 - Arbitrage | 33597 |
25.20%
|
7122 |
68.03%
|
||
105 - The Skyline Problem | 64547 |
26.00%
|
15533 |
69.18%
|
||
106 - Fermat vs. Pythagoras | 29837 |
34.28%
|
7052 |
67.39%
|
||
107 - The Cat in the Hat | 53157 |
21.68%
|
9187 |
68.27%
|
||
108 - Maximum Sum | 73364 |
44.64%
|
23797 |
83.54%
|
||
109 - SCUD Busters | 14127 |
32.28%
|
3742 |
68.39%
|
||
110 - Meta-Loopless Sorts | 13020 |
31.95%
|
3586 |
66.01%
|
||
111 - History Grading | 35773 |
45.53%
|
13559 |
77.84%
|
||
112 - Tree Summing | 39432 |
28.26%
|
8117 |
78.16%
|
||
113 - Power of Cryptography | 77859 |
40.99%
|
24773 |
89.13%
|
||
114 - Simulation Wizardry | 8961 |
32.55%
|
2604 |
75.31%
|
||
115 - Climbing Trees | 7652 |
35.26%
|
2302 |
81.41%
|
||
116 - Unidirectional TSP | 70143 |
25.34%
|
12675 |
72.62%
|
||
117 - The Postal Worker Rings Once | 10034 |
49.74%
|
3963 |
89.38%
|
||
118 - Mutant Flatworld Explorers | 28265 |
41.83%
|
10033 |
86.83%
|
||
119 - Greedy Gift Givers | 44803 |
28.85%
|
13159 |
74.79%
|
||
120 - Stacks of Flapjacks | 46817 |
41.05%
|
12608 |
87.13%
|
||
121 - Pipe Fitters | 8406 |
43.10%
|
3410 |
87.30%
|
||
122 - Trees on the level | 41853 |
29.41%
|
7520 |
74.57%
|
||
123 - Searching Quickly | 14702 |
35.59%
|
4936 |
75.45%
|
||
124 - Following Orders | 14908 |
39.17%
|
5076 |
78.72%
|
||
125 - Numbering Paths | 11223 |
29.70%
|
3223 |
74.74%
|
||
126 - The Errant Physicist | 4530 |
31.68%
|
1617 |
75.82%
|
||
127 - "Accordian" Patience | 19137 |
40.01%
|
4827 |
81.56%
|
||
128 - Software CRC | 20040 |
42.93%
|
4473 |
88.22%
|
||
129 - Krypton Factor | 15792 |
39.84%
|
3135 |
84.34%
|
||
130 - Roman Roulette | 9775 |
42.27%
|
3981 |
81.59%
|
||
131 - The Psychic Poker Player | 4335 |
50.01%
|
1869 |
88.60%
|
||
132 - Bumpy Objects | 4431 |
42.07%
|
1235 |
82.11%
|
||
133 - The Dole Queue | 28259 |
49.58%
|
8034 |
88.98%
|
||
134 - Loglan-A Logical Language | 3754 |
29.54%
|
1121 |
80.29%
|
||
135 - No Rectangles | 3355 |
27.75%
|
1253 |
52.99%
|
||
136 - Ugly Numbers | 124018 |
32.84%
|
30386 |
79.40%
|
||
137 - Polygons | 4915 |
21.57%
|
1131 |
62.16%
|
||
138 - Street Numbers | 21969 |
45.56%
|
8949 |
84.77%
|
||
139 - Telephone Tangles | 10287 |
16.16%
|
1718 |
49.01%
|
||
140 - Bandwidth | 16684 |
43.01%
|
3781 |
87.73%
|
||
141 - The Spot Game | 8840 |
44.56%
|
2696 |
89.87%
|
||
142 - Mouse Clicks | 7010 |
22.20%
|
2441 |
45.92%
|
||
143 - Orchard Trees | 20628 |
12.58%
|
2667 |
44.69%
|
||
144 - Student Grants | 7653 |
46.69%
|
3110 |
85.40%
|
||
145 - Gondwanaland Telecom | 10583 |
25.58%
|
2889 |
74.77%
|
||
146 - ID Codes | 35547 |
57.65%
|
16303 |
93.57%
|
||
147 - Dollars | 64137 |
28.59%
|
12873 |
75.14%
|
||
148 - Anagram checker | 5531 |
35.38%
|
1590 |
76.42%
|
||
149 - Forests | 1315 |
45.78%
|
460 |
75.87%
|
||
150 - Double Time | 2662 |
32.68%
|
863 |
66.28%
|
||
151 - Power Crisis | 27130 |
60.54%
|
12046 |
93.18%
|
||
152 - Tree's a Crowd | 12486 |
39.23%
|
3625 |
87.12%
|
||
153 - Permalex | 7963 |
29.46%
|
2641 |
70.73%
|
||
154 - Recycling | 7291 |
53.31%
|
3661 |
89.29%
|
||
155 - All Squares | 7474 |
50.37%
|
3404 |
86.19%
|
||
156 - Ananagrams | 35123 |
65.99%
|
11787 |
94.55%
|
||
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 | 46468 |
31.80%
|
12898 |
83.02%
|
||
161 - Traffic Lights | 10584 |
38.67%
|
3549 |
89.12%
|
||
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 | 4436 |
41.21%
|
1488 |
80.91%
|
||
166 - Making Change | 11688 |
39.17%
|
3188 |
86.10%
|
||
167 - The Sultan's Successors | 28723 |
46.92%
|
8693 |
90.54%
|
||
168 - Theseus and the Minotaur | 9585 |
33.72%
|
2087 |
73.60%
|
||
169 - Xenosemantics | 2115 |
20.00%
|
332 |
64.76%
|
||
170 - Clock Patience | 7334 |
45.50%
|
2738 |
90.36%
|
||
171 - Car Trialling | 3480 |
14.22%
|
569 |
70.12%
|
||
172 - Calculator Language | 2697 |
25.81%
|
779 |
69.70%
|
||
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 | 3776 |
39.62%
|
1193 |
72.25%
|
||
178 - Shuffling Patience | 1193 |
38.89%
|
444 |
77.48%
|
||
179 - Code Breaking | 2391 |
25.26%
|
641 |
72.85%
|
||
180 - Eeny Meeny | 2663 |
22.57%
|
694 |
43.37%
|
||
181 - Hearts | 1248 |
48.88%
|
615 |
84.07%
|
||
182 - Bonus Bonds | 913 |
42.72%
|
444 |
79.05%
|
||
183 - Bit Maps | 7215 |
26.63%
|
1965 |
76.39%
|
||
184 - Laser Lines | 4902 |
44.55%
|
1393 |
85.28%
|
||
185 - Roman Numerals | 3122 |
40.87%
|
1022 |
82.68%
|
||
186 - Trip Routing | 4773 |
31.45%
|
1577 |
70.39%
|
||
187 - Transaction Processing | 3794 |
37.61%
|
1401 |
79.37%
|
||
188 - Perfect Hash | 5341 |
49.15%
|
1838 |
88.47%
|
||
189 - Pascal Program Lengths | 1117 |
22.83%
|
320 |
62.50%
|
||
190 - Circle Through Three Points | 18575 |
35.24%
|
5734 |
78.44%
|
||
191 - Intersection | 30623 |
22.92%
|
6162 |
69.38%
|
||
192 - Synchronous Design | 1179 |
30.53%
|
428 |
69.63%
|
||
193 - Graph Coloring | 23832 |
28.64%
|
5781 |
70.85%
|
||
194 - Triangle | 2733 |
16.39%
|
557 |
47.58%
|
||
195 - Anagram | 44855 |
25.87%
|
10766 |
69.65%
|
||
196 - Spreadsheet | 13362 |
25.55%
|
2292 |
76.18%
|
||
197 - Cube | 1569 |
19.76%
|
384 |
46.09%
|
||
198 - Peter's Calculator | 2978 |
19.58%
|
642 |
63.55%
|
||
199 - Partial differential equations | 1031 |
22.21%
|
401 |
44.89%
|
<< Start < Prev 1 Next > End >> | ||
Display # | Results 1 - 100 of 100 |