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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 944345 |
26.70%
|
145665 |
73.97%
|
|
|
|
101 - The Blocks Problem | 126341 |
25.99%
|
25478 |
70.34%
|
|
|
|
102 - Ecological Bin Packing | 111255 |
39.41%
|
32480 |
87.24%
|
|
|
103 - Stacking Boxes | 46364 |
26.79%
|
12416 |
61.36%
|
|
|
|
104 - Arbitrage | 33873 |
25.22%
|
7202 |
67.98%
|
|
|
|
105 - The Skyline Problem | 65745 |
26.09%
|
15771 |
69.24%
|
|
|
|
106 - Fermat vs. Pythagoras | 30173 |
34.15%
|
7122 |
67.35%
|
|
|
|
107 - The Cat in the Hat | 53429 |
21.73%
|
9256 |
68.26%
|
|
|
|
108 - Maximum Sum | 75259 |
44.68%
|
24168 |
83.60%
|
|
|
|
109 - SCUD Busters | 14279 |
32.38%
|
3792 |
68.43%
|
|
|
|
110 - Meta-Loopless Sorts | 13251 |
32.13%
|
3655 |
66.05%
|
|
|
|
111 - History Grading | 36267 |
45.50%
|
13674 |
77.86%
|
|
|
|
112 - Tree Summing | 39693 |
28.31%
|
8188 |
78.16%
|
|
|
|
113 - Power of Cryptography | 79222 |
41.00%
|
25162 |
89.10%
|
|
|
|
114 - Simulation Wizardry | 9077 |
32.50%
|
2630 |
75.29%
|
|
|
|
115 - Climbing Trees | 7739 |
35.22%
|
2329 |
81.28%
|
|
|
|
116 - Unidirectional TSP | 71247 |
25.49%
|
12860 |
72.79%
|
|
|
|
117 - The Postal Worker Rings Once | 10182 |
49.73%
|
4022 |
89.28%
|
|
|
|
118 - Mutant Flatworld Explorers | 30355 |
41.78%
|
10414 |
86.84%
|
|
|
|
119 - Greedy Gift Givers | 45662 |
28.94%
|
13297 |
74.89%
|
|
|
|
120 - Stacks of Flapjacks | 48456 |
41.34%
|
13257 |
87.37%
|
|
|
|
121 - Pipe Fitters | 8592 |
43.02%
|
3462 |
87.15%
|
|
|
|
122 - Trees on the level | 43211 |
29.68%
|
7703 |
74.72%
|
|
|
|
123 - Searching Quickly | 14848 |
35.73%
|
5004 |
75.44%
|
|
|
|
124 - Following Orders | 15698 |
39.26%
|
5186 |
78.83%
|
|
|
|
125 - Numbering Paths | 11345 |
29.72%
|
3251 |
74.75%
|
|
|
|
126 - The Errant Physicist | 4570 |
31.79%
|
1629 |
75.81%
|
|
|
|
127 - "Accordian" Patience | 19507 |
40.02%
|
4900 |
81.61%
|
|
|
|
128 - Software CRC | 20232 |
42.90%
|
4528 |
88.03%
|
|
|
|
129 - Krypton Factor | 16269 |
39.82%
|
3205 |
84.21%
|
|
|
|
130 - Roman Roulette | 9894 |
42.12%
|
4014 |
81.37%
|
|
|
|
131 - The Psychic Poker Player | 4369 |
50.06%
|
1887 |
88.39%
|
|
|
|
132 - Bumpy Objects | 4452 |
42.21%
|
1246 |
82.10%
|
|
|
|
133 - The Dole Queue | 29135 |
49.50%
|
8193 |
88.93%
|
|
|
|
134 - Loglan-A Logical Language | 3774 |
29.49%
|
1128 |
80.14%
|
|
|
|
135 - No Rectangles | 3378 |
27.86%
|
1268 |
53.15%
|
|
|
|
136 - Ugly Numbers | 127776 |
32.95%
|
30911 |
79.55%
|
|
|
|
137 - Polygons | 5049 |
21.77%
|
1149 |
62.14%
|
|
|
|
138 - Street Numbers | 22089 |
45.53%
|
8988 |
84.77%
|
|
|
|
139 - Telephone Tangles | 10366 |
16.17%
|
1735 |
49.05%
|
|
|
|
140 - Bandwidth | 17039 |
43.05%
|
3850 |
87.66%
|
|
|
|
141 - The Spot Game | 8969 |
44.77%
|
2738 |
89.96%
|
|
|
|
142 - Mouse Clicks | 7027 |
22.31%
|
2449 |
46.06%
|
|
|
|
143 - Orchard Trees | 20720 |
12.61%
|
2682 |
44.78%
|
|
|
|
144 - Student Grants | 7821 |
46.53%
|
3167 |
85.35%
|
|
|
|
145 - Gondwanaland Telecom | 10741 |
25.61%
|
2914 |
74.78%
|
|
|
|
146 - ID Codes | 36200 |
57.75%
|
16444 |
93.55%
|
|
|
|
147 - Dollars | 66479 |
28.92%
|
13084 |
75.45%
|
|
|
|
148 - Anagram checker | 5567 |
35.55%
|
1607 |
76.42%
|
|
|
|
149 - Forests | 1351 |
45.45%
|
472 |
75.42%
|
|
|
|
150 - Double Time | 2705 |
32.64%
|
878 |
66.29%
|
|
|
|
151 - Power Crisis | 28146 |
60.57%
|
12288 |
93.18%
|
|
|
|
152 - Tree's a Crowd | 12701 |
39.09%
|
3670 |
87.14%
|
|
|
|
153 - Permalex | 8059 |
29.51%
|
2668 |
70.69%
|
|
|
|
154 - Recycling | 7413 |
53.11%
|
3706 |
89.21%
|
|
|
|
155 - All Squares | 7542 |
50.38%
|
3431 |
86.24%
|
|
|
|
156 - Ananagrams | 36177 |
66.20%
|
12052 |
94.56%
|
|
|
|
157 - Route Finding | 2155 |
32.85%
|
717 |
80.33%
|
|
|
|
158 - Calendar | 3452 |
16.11%
|
790 |
57.22%
|
|
|
|
159 - Word Crosses | 5658 |
24.51%
|
1831 |
60.84%
|
|
|
|
160 - Factors and Factorials | 47034 |
31.85%
|
13004 |
83.11%
|
|
|
|
161 - Traffic Lights | 10771 |
38.68%
|
3617 |
88.97%
|
|
|
|
162 - Beggar My Neighbour | 6670 |
33.19%
|
1957 |
81.14%
|
|
|
|
163 - City Directions | 1889 |
14.66%
|
361 |
57.34%
|
|
|
|
164 - String Computer | 14070 |
31.49%
|
3085 |
75.40%
|
|
|
|
165 - Stamps | 4740 |
40.55%
|
1531 |
80.67%
|
|
|
|
166 - Making Change | 12294 |
39.40%
|
3255 |
86.21%
|
|
|
|
167 - The Sultan's Successors | 29758 |
46.60%
|
8821 |
90.51%
|
|
|
|
168 - Theseus and the Minotaur | 9738 |
34.01%
|
2119 |
73.86%
|
|
|
|
169 - Xenosemantics | 2133 |
20.02%
|
339 |
64.31%
|
|
|
|
170 - Clock Patience | 7433 |
45.28%
|
2766 |
90.27%
|
|
|
|
171 - Car Trialling | 3500 |
14.26%
|
579 |
69.60%
|
|
|
|
172 - Calculator Language | 2717 |
25.95%
|
788 |
69.80%
|
|
|
|
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 | 3988 |
40.25%
|
1225 |
72.73%
|
|
|
|
178 - Shuffling Patience | 1194 |
38.86%
|
445 |
77.30%
|
|
|
|
179 - Code Breaking | 2397 |
25.28%
|
645 |
72.71%
|
|
|
|
180 - Eeny Meeny | 2679 |
22.62%
|
697 |
43.47%
|
|
|
|
181 - Hearts | 1263 |
48.93%
|
625 |
83.84%
|
|
|
|
182 - Bonus Bonds | 919 |
42.55%
|
447 |
78.75%
|
|
|
|
183 - Bit Maps | 7583 |
26.68%
|
2018 |
76.26%
|
|
|
|
184 - Laser Lines | 4975 |
44.50%
|
1401 |
85.22%
|
|
|
|
185 - Roman Numerals | 3223 |
40.58%
|
1039 |
82.77%
|
|
|
|
186 - Trip Routing | 4799 |
31.49%
|
1588 |
70.28%
|
|
|
|
187 - Transaction Processing | 3821 |
37.58%
|
1412 |
79.32%
|
|
|
|
188 - Perfect Hash | 5456 |
48.97%
|
1870 |
88.45%
|
|
|
|
189 - Pascal Program Lengths | 1130 |
22.83%
|
327 |
61.77%
|
|
|
|
190 - Circle Through Three Points | 18750 |
35.32%
|
5763 |
78.50%
|
|
|
|
191 - Intersection | 30978 |
22.94%
|
6208 |
69.43%
|
|
|
|
192 - Synchronous Design | 1201 |
30.31%
|
432 |
69.44%
|
|
|
|
193 - Graph Coloring | 24533 |
28.41%
|
5858 |
70.93%
|
|
|
|
194 - Triangle | 2767 |
17.13%
|
561 |
48.31%
|
|
|
|
195 - Anagram | 46162 |
25.93%
|
10844 |
69.61%
|
|
|
|
196 - Spreadsheet | 13546 |
25.56%
|
2321 |
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 | |