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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 100 - The 3n + 1 problem 944201
26.70%
145641
73.98%
FILE 101 - The Blocks Problem 126283
25.97%
25462
70.33%
FILE 102 - Ecological Bin Packing 111243
39.41%
32475
87.24%
FILE 103 - Stacking Boxes 46357
26.79%
12413
61.35%
FILE 104 - Arbitrage 33873
25.22%
7202
67.98%
FILE 105 - The Skyline Problem 65730
26.09%
15767
69.24%
FILE 106 - Fermat vs. Pythagoras 30173
34.15%
7122
67.35%
FILE 107 - The Cat in the Hat 53429
21.73%
9256
68.26%
FILE 108 - Maximum Sum 75250
44.68%
24163
83.59%
FILE 109 - SCUD Busters 14274
32.39%
3792
68.43%
FILE 110 - Meta-Loopless Sorts 13251
32.13%
3655
66.05%
FILE 111 - History Grading 36262
45.50%
13672
77.86%
FILE 112 - Tree Summing 39693
28.31%
8188
78.16%
FILE 113 - Power of Cryptography 79200
41.00%
25153
89.09%
FILE 114 - Simulation Wizardry 9076
32.49%
2629
75.28%
FILE 115 - Climbing Trees 7739
35.22%
2329
81.28%
FILE 116 - Unidirectional TSP 71236
25.49%
12857
72.79%
FILE 117 - The Postal Worker Rings Once 10181
49.73%
4021
89.31%
FILE 118 - Mutant Flatworld Explorers 30328
41.79%
10408
86.86%
FILE 119 - Greedy Gift Givers 45638
28.95%
13295
74.89%
FILE 120 - Stacks of Flapjacks 48434
41.32%
13240
87.36%
FILE 121 - Pipe Fitters 8591
43.01%
3461
87.14%
FILE 122 - Trees on the level 43192
29.68%
7700
74.73%
FILE 123 - Searching Quickly 14848
35.73%
5004
75.44%
FILE 124 - Following Orders 15610
39.22%
5182
78.85%
FILE 125 - Numbering Paths 11345
29.72%
3251
74.75%
FILE 126 - The Errant Physicist 4569
31.78%
1628
75.80%
FILE 127 - "Accordian" Patience 19502
40.03%
4899
81.63%
FILE 128 - Software CRC 20232
42.90%
4528
88.03%
FILE 129 - Krypton Factor 16266
39.83%
3204
84.24%
FILE 130 - Roman Roulette 9890
42.13%
4013
81.39%
FILE 131 - The Psychic Poker Player 4368
50.05%
1886
88.39%
FILE 132 - Bumpy Objects 4450
42.22%
1245
82.17%
FILE 133 - The Dole Queue 29132
49.50%
8191
88.93%
FILE 134 - Loglan-A Logical Language 3770
29.52%
1127
80.21%
FILE 135 - No Rectangles 3375
27.88%
1267
53.20%
FILE 136 - Ugly Numbers 127738
32.95%
30902
79.54%
FILE 137 - Polygons 5047
21.76%
1148
62.11%
FILE 138 - Street Numbers 22082
45.54%
8987
84.77%
FILE 139 - Telephone Tangles 10366
16.17%
1735
49.05%
FILE 140 - Bandwidth 17039
43.05%
3850
87.66%
FILE 141 - The Spot Game 8968
44.76%
2737
89.95%
FILE 142 - Mouse Clicks 7027
22.31%
2449
46.06%
FILE 143 - Orchard Trees 20720
12.61%
2682
44.78%
FILE 144 - Student Grants 7816
46.55%
3166
85.34%
FILE 145 - Gondwanaland Telecom 10741
25.61%
2914
74.78%
FILE 146 - ID Codes 36122
57.71%
16443
93.55%
FILE 147 - Dollars 66436
28.91%
13084
75.45%
FILE 148 - Anagram checker 5567
35.55%
1607
76.42%
FILE 149 - Forests 1351
45.45%
472
75.42%
FILE 150 - Double Time 2705
32.64%
878
66.29%
FILE 151 - Power Crisis 28138
60.56%
12288
93.18%
FILE 152 - Tree's a Crowd 12700
39.09%
3669
87.14%
FILE 153 - Permalex 8059
29.51%
2668
70.69%
FILE 154 - Recycling 7413
53.11%
3706
89.21%
FILE 155 - All Squares 7542
50.38%
3431
86.24%
FILE 156 - Ananagrams 36154
66.21%
12047
94.55%
FILE 157 - Route Finding 2155
32.85%
717
80.33%
FILE 158 - Calendar 3450
16.12%
790
57.22%
FILE 159 - Word Crosses 5658
24.51%
1831
60.84%
FILE 160 - Factors and Factorials 47030
31.85%
13004
83.11%
FILE 161 - Traffic Lights 10763
38.69%
3615
88.96%
FILE 162 - Beggar My Neighbour 6650
33.20%
1956
81.13%
FILE 163 - City Directions 1889
14.66%
361
57.34%
FILE 164 - String Computer 14070
31.49%
3085
75.40%
FILE 165 - Stamps 4739
40.56%
1531
80.67%
FILE 166 - Making Change 12292
39.40%
3254
86.20%
FILE 167 - The Sultan's Successors 29756
46.60%
8820
90.52%
FILE 168 - Theseus and the Minotaur 9738
34.01%
2119
73.86%
FILE 169 - Xenosemantics 2133
20.02%
339
64.31%
FILE 170 - Clock Patience 7433
45.28%
2766
90.27%
FILE 171 - Car Trialling 3500
14.26%
579
69.60%
FILE 172 - Calculator Language 2717
25.95%
788
69.80%
FILE 173 - Network Wars 3128
17.49%
651
46.08%
FILE 174 - Strategy 1333
39.46%
560
79.46%
FILE 175 - Keywords 2388
17.71%
582
47.77%
FILE 176 - City Navigation 982
31.98%
309
80.58%
FILE 177 - Paper Folding 3988
40.25%
1225
72.73%
FILE 178 - Shuffling Patience 1194
38.86%
445
77.30%
FILE 179 - Code Breaking 2397
25.28%
645
72.71%
FILE 180 - Eeny Meeny 2679
22.62%
697
43.47%
FILE 181 - Hearts 1263
48.93%
625
83.84%
FILE 182 - Bonus Bonds 919
42.55%
447
78.75%
FILE 183 - Bit Maps 7579
26.68%
2016
76.29%
FILE 184 - Laser Lines 4974
44.49%
1401
85.22%
FILE 185 - Roman Numerals 3219
40.57%
1038
82.66%
FILE 186 - Trip Routing 4799
31.49%
1588
70.28%
FILE 187 - Transaction Processing 3821
37.58%
1412
79.32%
FILE 188 - Perfect Hash 5456
48.97%
1870
88.45%
FILE 189 - Pascal Program Lengths 1130
22.83%
327
61.77%
FILE 190 - Circle Through Three Points 18750
35.32%
5763
78.50%
FILE 191 - Intersection 30959
22.94%
6208
69.43%
FILE 192 - Synchronous Design 1201
30.31%
432
69.44%
FILE 193 - Graph Coloring 24533
28.41%
5858
70.93%
FILE 194 - Triangle 2767
17.13%
561
48.31%
FILE 195 - Anagram 46125
25.88%
10843
69.62%
FILE 196 - Spreadsheet 13520
25.61%
2317
76.13%
FILE 197 - Cube 1586
19.67%
387
45.99%
FILE 198 - Peter's Calculator 2998
19.85%
651
63.90%
FILE 199 - Partial differential equations 1038
22.45%
405
44.94%
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