Browse Problems 
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
100 - The 3n + 1 problem | 862608 |
26.48%
|
131732 |
73.39%
|
|
|
|
101 - The Blocks Problem | 112879 |
24.52%
|
22860 |
69.37%
|
|
|
|
102 - Ecological Bin Packing | 106716 |
39.16%
|
30871 |
87.25%
|
|
|
103 - Stacking Boxes | 44513 |
26.00%
|
11784 |
60.35%
|
|
|
|
104 - Arbitrage | 31940 |
24.58%
|
6672 |
68.09%
|
|
|
|
105 - The Skyline Problem | 60015 |
25.50%
|
14537 |
68.18%
|
|
|
|
106 - Fermat vs. Pythagoras | 29258 |
34.15%
|
6832 |
67.26%
|
|
|
|
107 - The Cat in the Hat | 52144 |
21.36%
|
8919 |
67.96%
|
|
|
|
108 - Maximum Sum | 67051 |
44.20%
|
22140 |
83.27%
|
|
|
|
109 - SCUD Busters | 13534 |
32.15%
|
3535 |
69.28%
|
|
|
|
110 - Meta-Loopless Sorts | 12080 |
30.98%
|
3337 |
64.37%
|
|
|
|
111 - History Grading | 33651 |
45.11%
|
12942 |
77.55%
|
|
|
|
112 - Tree Summing | 38503 |
27.81%
|
7792 |
77.91%
|
|
|
|
113 - Power of Cryptography | 71419 |
40.79%
|
22805 |
88.98%
|
|
|
|
114 - Simulation Wizardry | 8740 |
32.14%
|
2499 |
75.03%
|
|
|
|
115 - Climbing Trees | 7453 |
34.98%
|
2205 |
81.50%
|
|
|
|
116 - Unidirectional TSP | 61929 |
24.02%
|
11183 |
70.93%
|
|
|
|
117 - The Postal Worker Rings Once | 9363 |
49.05%
|
3730 |
89.73%
|
|
|
|
118 - Mutant Flatworld Explorers | 23611 |
40.45%
|
8702 |
86.13%
|
|
|
|
119 - Greedy Gift Givers | 41637 |
28.59%
|
12274 |
74.08%
|
|
|
|
120 - Stacks of Flapjacks | 42455 |
40.72%
|
11407 |
86.98%
|
|
|
|
121 - Pipe Fitters | 7919 |
42.39%
|
3186 |
86.94%
|
|
|
|
122 - Trees on the level | 35971 |
28.71%
|
6568 |
73.64%
|
|
|
|
123 - Searching Quickly | 14124 |
34.98%
|
4675 |
75.06%
|
|
|
|
124 - Following Orders | 13546 |
39.08%
|
4724 |
78.09%
|
|
|
|
125 - Numbering Paths | 10325 |
28.24%
|
2942 |
73.18%
|
|
|
|
126 - The Errant Physicist | 4445 |
31.43%
|
1581 |
75.59%
|
|
|
|
127 - "Accordian" Patience | 17778 |
39.27%
|
4471 |
80.88%
|
|
|
|
128 - Software CRC | 19544 |
42.56%
|
4257 |
88.79%
|
|
|
|
129 - Krypton Factor | 13228 |
38.77%
|
2742 |
83.55%
|
|
|
|
130 - Roman Roulette | 9421 |
42.03%
|
3832 |
81.68%
|
|
|
|
131 - The Psychic Poker Player | 4115 |
50.72%
|
1809 |
89.00%
|
|
|
|
132 - Bumpy Objects | 4327 |
41.23%
|
1144 |
82.08%
|
|
|
|
133 - The Dole Queue | 24326 |
48.98%
|
7170 |
88.77%
|
|
|
|
134 - Loglan-A Logical Language | 3663 |
28.72%
|
1071 |
80.02%
|
|
|
|
135 - No Rectangles | 3158 |
26.85%
|
1161 |
51.51%
|
|
|
|
136 - Ugly Numbers | 109546 |
32.46%
|
28009 |
78.68%
|
|
|
|
137 - Polygons | 4793 |
20.97%
|
1098 |
61.93%
|
|
|
|
138 - Street Numbers | 21279 |
45.38%
|
8652 |
84.60%
|
|
|
|
139 - Telephone Tangles | 10015 |
16.02%
|
1623 |
49.29%
|
|
|
|
140 - Bandwidth | 14810 |
43.13%
|
3382 |
89.33%
|
|
|
|
141 - The Spot Game | 8044 |
43.39%
|
2505 |
89.86%
|
|
|
|
142 - Mouse Clicks | 6903 |
22.08%
|
2410 |
45.48%
|
|
|
|
143 - Orchard Trees | 20326 |
12.31%
|
2576 |
43.32%
|
|
|
|
144 - Student Grants | 7240 |
46.62%
|
2931 |
85.19%
|
|
|
|
145 - Gondwanaland Telecom | 9984 |
24.61%
|
2705 |
73.79%
|
|
|
|
146 - ID Codes | 33436 |
57.20%
|
15348 |
93.62%
|
|
|
|
147 - Dollars | 58487 |
27.76%
|
12106 |
74.37%
|
|
|
|
148 - Anagram checker | 5351 |
35.10%
|
1496 |
76.87%
|
|
|
|
149 - Forests | 1242 |
44.44%
|
402 |
75.37%
|
|
|
|
150 - Double Time | 2541 |
30.74%
|
782 |
63.68%
|
|
|
|
151 - Power Crisis | 24989 |
60.03%
|
11206 |
92.98%
|
|
|
|
152 - Tree's a Crowd | 12003 |
39.20%
|
3475 |
86.91%
|
|
|
|
153 - Permalex | 7777 |
28.83%
|
2552 |
70.06%
|
|
|
|
154 - Recycling | 6846 |
53.33%
|
3446 |
89.76%
|
|
|
|
155 - All Squares | 7210 |
49.68%
|
3273 |
85.95%
|
|
|
|
156 - Ananagrams | 29327 |
63.89%
|
10295 |
94.26%
|
|
|
|
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