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Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 957091 |
26.84%
|
147320 |
74.10%
|
|
|
|
101 - The Blocks Problem | 127819 |
26.26%
|
25742 |
70.51%
|
|
|
|
102 - Ecological Bin Packing | 111837 |
39.51%
|
32614 |
87.25%
|
|
|
103 - Stacking Boxes | 46615 |
26.93%
|
12491 |
61.49%
|
|
|
|
104 - Arbitrage | 34130 |
25.29%
|
7268 |
68.08%
|
|
|
|
105 - The Skyline Problem | 66395 |
26.20%
|
15896 |
69.39%
|
|
|
|
106 - Fermat vs. Pythagoras | 30383 |
34.16%
|
7175 |
67.44%
|
|
|
|
107 - The Cat in the Hat | 53831 |
21.80%
|
9322 |
68.29%
|
|
|
|
108 - Maximum Sum | 76631 |
44.77%
|
24385 |
83.65%
|
|
|
|
109 - SCUD Busters | 14370 |
32.51%
|
3821 |
68.57%
|
|
|
|
110 - Meta-Loopless Sorts | 13643 |
32.69%
|
3699 |
66.34%
|
|
|
|
111 - History Grading | 36964 |
45.32%
|
13766 |
77.86%
|
|
|
|
112 - Tree Summing | 40181 |
28.46%
|
8256 |
78.21%
|
|
|
|
113 - Power of Cryptography | 79911 |
41.04%
|
25334 |
89.09%
|
|
|
|
114 - Simulation Wizardry | 9178 |
32.52%
|
2660 |
75.15%
|
|
|
|
115 - Climbing Trees | 7812 |
35.29%
|
2350 |
81.23%
|
|
|
|
116 - Unidirectional TSP | 71739 |
25.62%
|
12944 |
72.88%
|
|
|
|
117 - The Postal Worker Rings Once | 10307 |
49.89%
|
4065 |
89.30%
|
|
|
|
118 - Mutant Flatworld Explorers | 32263 |
42.10%
|
10708 |
87.06%
|
|
|
|
119 - Greedy Gift Givers | 46127 |
29.12%
|
13387 |
75.01%
|
|
|
|
120 - Stacks of Flapjacks | 49133 |
41.62%
|
13529 |
87.49%
|
|
|
|
121 - Pipe Fitters | 8648 |
43.09%
|
3481 |
87.04%
|
|
|
|
122 - Trees on the level | 44059 |
29.87%
|
7814 |
74.90%
|
|
|
|
123 - Searching Quickly | 14928 |
35.87%
|
5039 |
75.51%
|
|
|
|
124 - Following Orders | 16092 |
39.49%
|
5245 |
78.99%
|
|
|
|
125 - Numbering Paths | 11476 |
29.83%
|
3280 |
74.79%
|
|
|
|
126 - The Errant Physicist | 4626 |
31.86%
|
1641 |
75.81%
|
|
|
|
127 - "Accordian" Patience | 19924 |
39.87%
|
4940 |
81.72%
|
|
|
|
128 - Software CRC | 20293 |
42.96%
|
4548 |
88.04%
|
|
|
|
129 - Krypton Factor | 16441 |
39.92%
|
3241 |
84.29%
|
|
|
|
130 - Roman Roulette | 10072 |
41.80%
|
4037 |
81.30%
|
|
|
|
131 - The Psychic Poker Player | 4441 |
50.19%
|
1906 |
88.35%
|
|
|
|
132 - Bumpy Objects | 4486 |
42.31%
|
1255 |
82.15%
|
|
|
|
133 - The Dole Queue | 29622 |
49.42%
|
8276 |
88.92%
|
|
|
|
134 - Loglan-A Logical Language | 3812 |
29.72%
|
1139 |
80.25%
|
|
|
|
135 - No Rectangles | 3411 |
28.23%
|
1279 |
53.32%
|
|
|
|
136 - Ugly Numbers | 129894 |
33.01%
|
31117 |
79.59%
|
|
|
|
137 - Polygons | 5105 |
21.94%
|
1160 |
62.33%
|
|
|
|
138 - Street Numbers | 22193 |
45.51%
|
9015 |
84.76%
|
|
|
|
139 - Telephone Tangles | 10465 |
16.17%
|
1744 |
49.14%
|
|
|
|
140 - Bandwidth | 17192 |
43.11%
|
3878 |
87.67%
|
|
|
|
141 - The Spot Game | 9081 |
44.95%
|
2773 |
89.94%
|
|
|
|
142 - Mouse Clicks | 7063 |
22.51%
|
2461 |
46.24%
|
|
|
|
143 - Orchard Trees | 20784 |
12.66%
|
2694 |
44.84%
|
|
|
|
144 - Student Grants | 7895 |
46.42%
|
3187 |
85.25%
|
|
|
|
145 - Gondwanaland Telecom | 10968 |
25.80%
|
2952 |
74.90%
|
|
|
|
146 - ID Codes | 36579 |
57.86%
|
16538 |
93.54%
|
|
|
|
147 - Dollars | 67620 |
29.16%
|
13225 |
75.65%
|
|
|
|
148 - Anagram checker | 5607 |
35.78%
|
1619 |
76.47%
|
|
|
|
149 - Forests | 1415 |
44.59%
|
482 |
75.52%
|
|
|
|
150 - Double Time | 2736 |
32.68%
|
890 |
65.96%
|
|
|
|
151 - Power Crisis | 28854 |
60.53%
|
12462 |
93.13%
|
|
|
|
152 - Tree's a Crowd | 12744 |
39.17%
|
3682 |
87.13%
|
|
|
|
153 - Permalex | 8107 |
29.64%
|
2682 |
70.77%
|
|
|
|
154 - Recycling | 7488 |
53.14%
|
3738 |
89.25%
|
|
|
|
155 - All Squares | 7572 |
50.44%
|
3441 |
86.20%
|
|
|
|
156 - Ananagrams | 36845 |
66.20%
|
12181 |
94.61%
|
|
|
|
157 - Route Finding | 2182 |
33.09%
|
725 |
80.28%
|
|
|
|
158 - Calendar | 3519 |
16.34%
|
799 |
57.45%
|
|
|
|
159 - Word Crosses | 5692 |
24.68%
|
1843 |
60.93%
|
|
|
|
160 - Factors and Factorials | 47547 |
31.90%
|
13057 |
83.14%
|
|
|
|
161 - Traffic Lights | 10932 |
38.68%
|
3660 |
88.91%
|
|
|
|
162 - Beggar My Neighbour | 6801 |
33.11%
|
1988 |
80.78%
|
|
|
|
163 - City Directions | 1932 |
15.01%
|
370 |
57.84%
|
|
|
|
164 - String Computer | 14384 |
31.53%
|
3108 |
75.39%
|
|
|
|
165 - Stamps | 4843 |
40.88%
|
1564 |
80.43%
|
|
|
|
166 - Making Change | 12609 |
39.65%
|
3314 |
86.33%
|
|
|
|
167 - The Sultan's Successors | 30737 |
46.84%
|
8891 |
90.53%
|
|
|
|
168 - Theseus and the Minotaur | 9813 |
34.14%
|
2132 |
73.97%
|
|
|
|
169 - Xenosemantics | 2170 |
19.95%
|
346 |
63.87%
|
|
|
|
170 - Clock Patience | 7472 |
45.38%
|
2779 |
90.25%
|
|
|
|
171 - Car Trialling | 3533 |
14.46%
|
585 |
69.74%
|
|
|
|
172 - Calculator Language | 2757 |
26.26%
|
796 |
69.72%
|
|
|
|
173 - Network Wars | 3151 |
17.65%
|
656 |
46.04%
|
|
|
|
174 - Strategy | 1347 |
39.72%
|
565 |
79.29%
|
|
|
|
175 - Keywords | 2424 |
17.74%
|
588 |
47.62%
|
|
|
|
176 - City Navigation | 1015 |
31.72%
|
317 |
79.81%
|
|
|
|
177 - Paper Folding | 4297 |
41.10%
|
1267 |
73.24%
|
|
|
|
178 - Shuffling Patience | 1232 |
38.47%
|
459 |
75.82%
|
|
|
|
179 - Code Breaking | 2434 |
25.27%
|
654 |
72.48%
|
|
|
|
180 - Eeny Meeny | 2714 |
22.66%
|
704 |
43.47%
|
|
|
|
181 - Hearts | 1279 |
49.02%
|
629 |
83.94%
|
|
|
|
182 - Bonus Bonds | 936 |
43.06%
|
455 |
78.46%
|
|
|
|
183 - Bit Maps | 7877 |
27.04%
|
2041 |
76.48%
|
|
|
|
184 - Laser Lines | 5028 |
44.49%
|
1410 |
85.11%
|
|
|
|
185 - Roman Numerals | 3251 |
40.66%
|
1050 |
82.57%
|
|
|
|
186 - Trip Routing | 4825 |
31.50%
|
1595 |
70.22%
|
|
|
|
187 - Transaction Processing | 3845 |
37.69%
|
1417 |
79.39%
|
|
|
|
188 - Perfect Hash | 5511 |
49.10%
|
1896 |
88.50%
|
|
|
|
189 - Pascal Program Lengths | 1149 |
23.50%
|
333 |
62.46%
|
|
|
|
190 - Circle Through Three Points | 18814 |
35.39%
|
5774 |
78.52%
|
|
|
|
191 - Intersection | 31266 |
23.02%
|
6228 |
69.43%
|
|
|
|
192 - Synchronous Design | 1221 |
30.96%
|
437 |
69.79%
|
|
|
|
193 - Graph Coloring | 24850 |
28.57%
|
5931 |
71.10%
|
|
|
|
194 - Triangle | 2822 |
17.40%
|
567 |
48.32%
|
|
|
|
195 - Anagram | 46707 |
25.98%
|
10877 |
69.64%
|
|
|
|
196 - Spreadsheet | 13604 |
25.67%
|
2338 |
76.13%
|
|
|
|
197 - Cube | 1620 |
20.25%
|
393 |
46.56%
|
|
|
|
198 - Peter's Calculator | 3014 |
19.97%
|
657 |
63.77%
|
|
|
|
199 - Partial differential equations | 1049 |
22.97%
|
412 |
45.39%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |