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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 100 - The 3n + 1 problem 909856
26.59%
140372
73.71%
FILE 101 - The Blocks Problem 121959
25.53%
24591
70.17%
FILE 102 - Ecological Bin Packing 109361
39.37%
31922
87.30%
FILE 103 - Stacking Boxes 45629
26.45%
12149
60.89%
FILE 104 - Arbitrage 33186
25.09%
7015
68.44%
FILE 105 - The Skyline Problem 63489
25.96%
15334
69.08%
FILE 106 - Fermat vs. Pythagoras 29735
34.29%
7015
67.44%
FILE 107 - The Cat in the Hat 52836
21.58%
9141
68.23%
FILE 108 - Maximum Sum 71444
44.57%
23499
83.50%
FILE 109 - SCUD Busters 13998
32.35%
3679
69.12%
FILE 110 - Meta-Loopless Sorts 12696
31.55%
3498
65.49%
FILE 111 - History Grading 35318
45.39%
13425
77.73%
FILE 112 - Tree Summing 39241
28.14%
8036
78.07%
FILE 113 - Power of Cryptography 76617
40.93%
24377
89.12%
FILE 114 - Simulation Wizardry 8924
32.51%
2585
75.36%
FILE 115 - Climbing Trees 7631
35.20%
2290
81.40%
FILE 116 - Unidirectional TSP 67733
25.09%
12469
72.48%
FILE 117 - The Postal Worker Rings Once 9896
49.66%
3889
89.43%
FILE 118 - Mutant Flatworld Explorers 27015
41.24%
9718
86.64%
FILE 119 - Greedy Gift Givers 44212
28.78%
12976
74.69%
FILE 120 - Stacks of Flapjacks 46201
40.96%
12413
87.17%
FILE 121 - Pipe Fitters 8295
42.70%
3328
87.08%
FILE 122 - Trees on the level 40642
29.31%
7367
74.52%
FILE 123 - Searching Quickly 14566
35.38%
4859
75.39%
FILE 124 - Following Orders 14514
39.16%
4973
78.50%
FILE 125 - Numbering Paths 11101
29.34%
3151
74.36%
FILE 126 - The Errant Physicist 4520
31.62%
1610
75.84%
FILE 127 - "Accordian" Patience 18938
39.88%
4764
81.57%
FILE 128 - Software CRC 19922
42.89%
4401
88.55%
FILE 129 - Krypton Factor 15456
39.58%
3076
84.20%
FILE 130 - Roman Roulette 9692
42.26%
3955
81.62%
FILE 131 - The Psychic Poker Player 4322
50.05%
1862
88.67%
FILE 132 - Bumpy Objects 4379
41.49%
1187
81.72%
FILE 133 - The Dole Queue 27544
49.52%
7870
88.93%
FILE 134 - Loglan-A Logical Language 3724
29.19%
1097
80.31%
FILE 135 - No Rectangles 3304
27.42%
1216
52.63%
FILE 136 - Ugly Numbers 121371
32.74%
29927
79.24%
FILE 137 - Polygons 4880
21.50%
1127
62.11%
FILE 138 - Street Numbers 21813
45.61%
8888
84.79%
FILE 139 - Telephone Tangles 10222
16.24%
1677
50.09%
FILE 140 - Bandwidth 16371
43.17%
3689
88.64%
FILE 141 - The Spot Game 8699
44.15%
2626
89.87%
FILE 142 - Mouse Clicks 6982
22.24%
2435
45.91%
FILE 143 - Orchard Trees 20578
12.42%
2628
43.99%
FILE 144 - Student Grants 7523
46.47%
3042
85.27%
FILE 145 - Gondwanaland Telecom 10436
25.21%
2824
74.33%
FILE 146 - ID Codes 35118
57.54%
16128
93.57%
FILE 147 - Dollars 62985
28.48%
12752
75.01%
FILE 148 - Anagram checker 5483
35.29%
1553
77.01%
FILE 149 - Forests 1280
45.08%
431
75.87%
FILE 150 - Double Time 2614
31.75%
823
65.01%
FILE 151 - Power Crisis 26532
60.49%
11852
93.14%
FILE 152 - Tree's a Crowd 12427
39.08%
3583
87.02%
FILE 153 - Permalex 7914
29.21%
2609
70.49%
FILE 154 - Recycling 7193
53.62%
3616
89.74%
FILE 155 - All Squares 7347
49.90%
3353
86.04%
FILE 156 - Ananagrams 34455
65.81%
11543
94.54%
FILE 157 - Route Finding 2115
31.87%
689
79.54%
FILE 158 - Calendar 3331
16.15%
757
57.73%
FILE 159 - Word Crosses 5622
24.40%
1816
60.68%
FILE 160 - Factors and Factorials 45913
31.79%
12794
82.93%
FILE 161 - Traffic Lights 10352
38.44%
3460
88.93%
FILE 162 - Beggar My Neighbour 6298
33.65%
1899
81.25%
FILE 163 - City Directions 1858
14.85%
344
59.88%
FILE 164 - String Computer 13791
31.40%
3018
75.28%
FILE 165 - Stamps 4349
40.93%
1452
80.79%
FILE 166 - Making Change 11437
38.87%
3131
86.11%
FILE 167 - The Sultan's Successors 27569
47.60%
8606
90.58%
FILE 168 - Theseus and the Minotaur 9520
33.71%
2071
73.68%
FILE 169 - Xenosemantics 2114
20.01%
331
64.95%
FILE 170 - Clock Patience 7297
45.40%
2713
90.38%
FILE 171 - Car Trialling 3475
14.13%
565
70.09%
FILE 172 - Calculator Language 2688
25.74%
775
69.81%
FILE 173 - Network Wars 3079
16.89%
642
44.86%
FILE 174 - Strategy 1313
39.22%
548
79.93%
FILE 175 - Keywords 2359
17.51%
573
47.47%
FILE 176 - City Navigation 979
31.97%
307
80.78%
FILE 177 - Paper Folding 3686
39.53%
1174
71.89%
FILE 178 - Shuffling Patience 1193
38.89%
444
77.48%
FILE 179 - Code Breaking 2360
25.38%
639
72.77%
FILE 180 - Eeny Meeny 2662
22.58%
693
43.43%
FILE 181 - Hearts 1242
48.87%
610
84.26%
FILE 182 - Bonus Bonds 909
42.90%
442
79.41%
FILE 183 - Bit Maps 7028
26.58%
1943
76.43%
FILE 184 - Laser Lines 4889
44.49%
1384
85.33%
FILE 185 - Roman Numerals 2971
41.97%
991
83.85%
FILE 186 - Trip Routing 4757
31.39%
1574
70.39%
FILE 187 - Transaction Processing 3761
37.60%
1389
79.27%
FILE 188 - Perfect Hash 5300
49.15%
1812
88.74%
FILE 189 - Pascal Program Lengths 1113
22.91%
318
62.89%
FILE 190 - Circle Through Three Points 18503
35.18%
5716
78.41%
FILE 191 - Intersection 30465
22.91%
6131
69.34%
FILE 192 - Synchronous Design 1179
30.53%
428
69.63%
FILE 193 - Graph Coloring 23485
28.68%
5724
70.75%
FILE 194 - Triangle 2732
16.36%
556
47.48%
FILE 195 - Anagram 44500
25.80%
10702
69.59%
FILE 196 - Spreadsheet 13211
25.43%
2270
76.08%
FILE 197 - Cube 1559
19.82%
383
45.95%
FILE 198 - Peter's Calculator 2974
19.60%
638
63.95%
FILE 199 - Partial differential equations 1025
22.05%
397
44.58%
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