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Browse Problems
Root :: Problem Set Volumes (100...1999) :: Volume 9 (900-999)
Title Total Submissions / Solving % Total Users / Solving %
FILE 900 - Brick Wall Patterns 24140
63.73%
 10883
94.97%
FILE 901 - From Databases to XML 591
1.35%
 64
6.25%
FILE 902 - Password Search 25182
28.00%
 4454
78.22%
FILE 903 - Spiral of Numbers 1116
37.54%
 351
80.91%
FILE 904 - Overlapping Air Traffic Control Zones 457
51.20%
 172
84.30%
FILE 905 - Tacos Panchita 194
35.57%
 80
76.25%
FILE 906 - Rational Neighbor 2463
35.12%
 609
82.92%
FILE 907 - Winterim Backpacking Trip 4421
41.17%
 1373
87.04%
FILE 908 - Re-connecting Computer Sites 14924
38.62%
 3776
90.15%
FILE 909 - The BitPack Data Compression Problem 840
14.64%
 184
41.85%
FILE 910 - TV game 2057
47.74%
 810
91.23%
FILE 911 - Multinomial Coefficients 1524
50.85%
 528
85.23%
FILE 912 - Live From Mars 1155
24.42%
 350
60.29%
FILE 913 - Joana and the Odd Numbers 27504
45.42%
 10035
92.36%
FILE 914 - Jumping Champion 9936
36.39%
 2497
87.02%
FILE 915 - Stack of Cylinders 261
30.27%
 95
75.79%
FILE 916 - Dividing Land 304
2.63%
 30
16.67%
FILE 917 - Euro 2004 204
21.57%
 67
40.30%
FILE 918 - ASCII Mandelbrot 728
29.53%
 207
78.74%
FILE 919 - Cutting Polyominoes 47
38.30%
 30
56.67%
FILE 920 - Sunny Mountains 10347
76.30%
 2759
96.01%
FILE 921 - A Word Puzzle in the Sunny Mountains 884
18.44%
 95
74.74%
FILE 922 - Rectangle by the Ocean 310
46.77%
 118
84.75%
FILE 923 - One Against Many 201
26.87%
 42
64.29%
FILE 924 - Spreading The News 11988
54.05%
 4560
93.86%
FILE 925 - No more prerequisites, please! 876
68.61%
 376
90.69%
FILE 926 - Walking Around Wisely 4247
33.34%
 989
85.64%
FILE 927 - Integer Sequences from Addition of Terms 5179
62.33%
 2870
96.20%
FILE 928 - Eternal Truths 2885
39.41%
 821
87.09%
FILE 929 - Number Maze 33436
32.80%
 5646
79.49%
FILE 930 - Polynomial Roots 475
54.32%
 196
77.04%
FILE 931 - The Probable n-Ascendants 146
17.81%
 55
9.09%
FILE 932 - Checking the N-Queens Problem 425
21.18%
 137
36.50%
FILE 933 - Water Flow 309
47.57%
 126
56.35%
FILE 934 - Overlapping Areas 165
23.64%
 74
39.19%
FILE 935 - Smart Strategy 202
5.94%
 76
5.26%
FILE 936 - Mars for Sale 183
20.22%
 56
30.36%
FILE 937 - Kriss Kross Puzzle 101
17.82%
 48
25.00%
FILE 938 - Gilix 149
37.58%
 70
42.86%
FILE 939 - Genes 2403
38.49%
 736
80.57%
FILE 940 - Autobiographical Numbers 163
34.36%
 49
32.65%
FILE 941 - Permutations 10089
33.91%
 2879
70.34%
FILE 942 - Cyclic Numbers 370
36.22%
 125
57.60%
FILE 943 - Number Format Translator 91
36.26%
 59
42.37%
FILE 944 - Happy Numbers 4668
37.28%
 1117
83.53%
FILE 945 - Loading a Cargo Ship 439
43.51%
 184
77.72%
FILE 946 - A Pile of Boxes 413
54.96%
 214
86.45%
FILE 947 - Master Mind Helper 804
73.26%
 426
91.78%
FILE 948 - Fibonaccimal Base 12060
57.02%
 4287
95.96%
FILE 949 - Getaway 1326
35.14%
 330
80.30%
FILE 950 - Tweedle Numbers 149
32.89%
 53
62.26%
FILE 951 - The Pieces of the Puzzle 119
11.76%
 36
30.56%
FILE 952 - Uno game 120
31.67%
 49
63.27%
FILE 953 - The Incredible Pile Machine 132
69.70%
 68
82.35%
FILE 954 - Tetravex solver 152
32.89%
 54
55.56%
FILE 955 - Interpreting Old Maps 102
25.49%
 27
74.07%
FILE 956 - The Minimum Slot Machine 232
20.69%
 53
67.92%
FILE 957 - Popes 8794
42.03%
 2246
89.05%
FILE 958 - A Homer's Holiday 113
29.20%
 32
62.50%
FILE 959 - Car Rallying 303
40.59%
 73
83.56%
FILE 960 - Gaussian Primes 764
53.80%
 323
89.16%
FILE 961 - Ambiguous or Incomplete Inductive Definitions 25
32.00%
 20
20.00%
FILE 962 - Taxicab Numbers 2471
39.86%
 653
86.98%
FILE 963 - Spelling Corrector 481
7.07%
 166
16.27%
FILE 964 - Custom Language 522
16.86%
 53
56.60%
FILE 965 - Police Road Blocks 90
10.00%
 28
21.43%
FILE 966 - Lost Inheritances 82
7.32%
 33
18.18%
FILE 967 - Circular 5860
41.01%
 1269
88.26%
FILE 968 - Constellations 78
11.54%
 35
22.86%
FILE 969 - AlienAlgebra 142
46.48%
 66
68.18%
FILE 970 - Particles 865
27.28%
 157
72.61%
FILE 971 - Towers 132
18.94%
 51
33.33%
FILE 972 - Horizon Line 1243
34.35%
 350
86.29%
FILE 973 - The Guessing Game 166
36.14%
 67
41.79%
FILE 974 - Kaprekar Numbers 4482
40.94%
 1469
89.58%
FILE 975 - Gutenberg Clumsy Helper 88
37.50%
 45
44.44%
FILE 976 - Bridge Building 1686
49.53%
 379
89.97%
FILE 977 - Old West Rumours 126
26.19%
 38
28.95%
FILE 978 - Lemmings Battle! 12123
40.93%
 3357
90.17%
FILE 979 - The Abominable Triangleman 289
34.95%
 95
68.42%
FILE 980 - X-Express 187
24.06%
 61
68.85%
FILE 981 - Systematic Cyclic Redundancy Check Codes 116
26.72%
 35
68.57%
FILE 982 - Cube 204
33.33%
 67
76.12%
FILE 983 - Localized Summing for Blurring 3785
41.85%
 1193
88.43%
FILE 984 - Finding Haplotypes 127
17.32%
 29
48.28%
FILE 985 - Round and Round Maze 1889
59.82%
 485
91.75%
FILE 986 - How Many? 1024
66.41%
 489
92.64%
FILE 987 - Maternity 285
14.74%
 48
52.08%
FILE 988 - Many Paths, One Destination 4522
39.67%
 1490
90.81%
FILE 989 - Su Doku 7813
33.55%
 1516
83.77%
FILE 990 - Diving for Gold 17607
31.86%
 3413
87.49%
FILE 991 - Safe Salutations 10764
38.01%
 3161
90.95%
FILE 992 - Customer Service Cost Evaluation 87
35.63%
 42
57.14%
FILE 993 - Product of digits 12285
54.00%
 4604
94.37%
FILE 994 - POP 89
3.37%
 51
5.88%
FILE 995 - Super Divisible Numbers 346
55.49%
 160
86.25%
FILE 996 - Find the Sequence 199
24.62%
 91
48.35%
FILE 997 - Show the Sequence 1201
46.88%
 385
91.17%
FILE 998 - Dendogram 172
5.81%
 69
10.14%
FILE 999 - Book signatures 643
35.15%
 157
55.41%
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