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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 138 - Street Numbers 22193
45.51%
9015
84.76%
FILE 10006 - Carmichael Numbers 45662
38.07%
10995
85.40%
FILE 128 - Software CRC 20291
42.95%
4547
88.04%
FILE 106 - Fermat vs. Pythagoras 30369
34.15%
7171
67.42%
FILE 10673 - Play with Floor and Ceil 12745
48.69%
3932
89.01%
FILE 11121 - Base -2 6168
58.15%
2478
94.35%
FILE 10791 - Minimum Sum LCM 24886
27.21%
3307
83.04%
FILE 10717 - Mint 7682
39.70%
2290
87.64%
FILE 10820 - Send a Table 9287
59.29%
2693
91.46%
FILE 571 - Jugs 10413
45.87%
3074
87.70%
FILE 11029 - Leading and Trailing 11433
33.28%
2821
79.01%
FILE 10023 - Square root 50830
23.13%
6444
32.79%
FILE 10308 - Roads in the North 9978
35.08%
1994
73.32%
FILE 10105 - Polynomial Coefficients 9829
63.81%
4648
92.73%
FILE 10375 - Choose and divide 9991
49.86%
2556
84.08%
FILE 11027 - Palindromic Permutation 1860
39.19%
479
77.66%
FILE 10056 - What is the Probability ? 19615
42.75%
5301
90.49%
FILE 10491 - Cows and Cars 10256
67.92%
4157
96.10%
FILE 10759 - Dice Throwing 3802
61.97%
1621
96.55%
FILE 542 - France '98 3428
62.51%
1837
90.04%
FILE 10277 - Boastin' Red Socks 2391
27.48%
519
79.00%
FILE 10169 - Urn-ball Probabilities! 2318
38.22%
668
77.40%
FILE 11181 - Probability|Given 6615
57.37%
1633
95.90%
FILE 557 - Burger 4452
38.63%
1438
62.38%
FILE 10900 - So you want to be a 2n-aire? 1752
78.37%
790
92.78%
FILE 11176 - Winning Streak 1759
53.44%
632
88.13%
FILE 10417 - Gift Exchanging 1107
36.04%
328
73.17%
FILE 10183 - How Many Fibs? 25808
33.87%
7525
83.89%
FILE 10303 - How Many Trees? 7491
40.42%
2755
79.38%
FILE 10518 - How Many Calls? 5601
44.72%
1429
88.59%
FILE 10862 - Connect the Cable Wires 3677
55.89%
1603
91.52%
FILE 10334 - Ray Through Glasses 12599
52.06%
5720
89.02%
FILE 10229 - Modular Fibonacci 19106
37.18%
5305
80.02%
FILE 763 - Fibinary Numbers 11660
24.07%
2605
71.82%
FILE 10236 - The Fibonacci Primes 3915
25.24%
721
62.14%
FILE 991 - Safe Salutations 11222
37.64%
3217
90.80%
FILE 10079 - Pizza Cutting 55522
44.39%
18694
94.18%
FILE 10940 - Throwing cards away II 12621
49.62%
4377
86.11%
FILE 10359 - Tiling 4950
53.29%
2091
93.93%
FILE 10519 - !! Really Strange !! 4877
37.91%
1774
84.55%
FILE 10918 - Tri Tiling 5780
60.31%
2430
96.30%
FILE 11069 - A Graph Problem 6012
72.29%
3046
97.57%
FILE 10910 - Marks Distribution 6811
52.43%
2514
93.20%
FILE 10254 - The Priest Mathematician 6056
45.08%
1816
86.01%
FILE 10328 - Coin Toss 3049
39.75%
858
78.79%
FILE 10157 - Expressions 5754
33.45%
1555
70.23%
FILE 10247 - Complete Tree Labeling 3863
40.64%
1194
81.07%
FILE 10516 - Another Counting Problem 809
45.98%
335
89.25%
FILE 10128 - Queue 8871
51.28%
3030
89.17%
FILE 10081 - Tight Words 5734
52.08%
2305
90.41%
FILE 10943 - How do you add? 20909
49.20%
6122
93.76%
FILE 10721 - Bar Codes 10140
53.95%
3472
94.35%
FILE 10912 - Simple Minded Hashing 8015
40.54%
2149
89.39%
FILE 10616 - Divisible Group Sums 16110
37.21%
3909
90.43%
FILE 11125 - Arrange Some Marbles 1524
38.58%
423
86.05%
FILE 10205 - Stack 'em Up 19888
33.55%
5795
83.47%
FILE 701 - The Archeologists' Dilemma 23492
32.53%
4632
68.91%
FILE 696 - How Many Knights 17161
38.69%
5093
88.97%
FILE 254 - Towers of Hanoi 7043
20.01%
1779
50.25%
FILE 10994 - Simple Addition 12077
29.37%
2752
64.90%
FILE 306 - Cipher 11518
22.30%
2483
63.31%
FILE 10570 - Meeting with Aliens 3593
43.56%
825
83.39%
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