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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 138 - Street Numbers 22160
45.46%
9005
84.74%
FILE 10006 - Carmichael Numbers 45518
38.02%
10966
85.38%
FILE 128 - Software CRC 20262
42.93%
4541
88.04%
FILE 106 - Fermat vs. Pythagoras 30289
34.13%
7153
67.38%
FILE 10673 - Play with Floor and Ceil 12684
48.58%
3908
88.97%
FILE 11121 - Base -2 6109
58.08%
2474
94.34%
FILE 10791 - Minimum Sum LCM 24756
27.20%
3301
83.07%
FILE 10717 - Mint 7575
39.84%
2266
87.60%
FILE 10820 - Send a Table 9262
59.20%
2686
91.44%
FILE 571 - Jugs 10331
45.89%
3065
87.67%
FILE 11029 - Leading and Trailing 11170
33.24%
2749
79.01%
FILE 10023 - Square root 50774
23.11%
6436
32.69%
FILE 10308 - Roads in the North 9663
34.90%
1952
72.80%
FILE 10105 - Polynomial Coefficients 9671
63.56%
4559
92.67%
FILE 10375 - Choose and divide 9944
49.77%
2552
84.09%
FILE 11027 - Palindromic Permutation 1857
39.15%
479
77.66%
FILE 10056 - What is the Probability ? 18887
42.42%
5209
90.38%
FILE 10491 - Cows and Cars 10168
67.90%
4139
96.11%
FILE 10759 - Dice Throwing 3782
61.95%
1614
96.53%
FILE 542 - France '98 3420
62.46%
1830
90.05%
FILE 10277 - Boastin' Red Socks 2390
27.45%
518
78.96%
FILE 10169 - Urn-ball Probabilities! 2233
37.98%
649
76.89%
FILE 11181 - Probability|Given 6399
57.18%
1613
95.91%
FILE 557 - Burger 4439
38.57%
1435
62.23%
FILE 10900 - So you want to be a 2n-aire? 1727
78.58%
780
93.08%
FILE 11176 - Winning Streak 1741
53.70%
628
88.06%
FILE 10417 - Gift Exchanging 1104
36.05%
326
73.31%
FILE 10183 - How Many Fibs? 25589
33.73%
7455
83.80%
FILE 10303 - How Many Trees? 7415
40.71%
2752
79.36%
FILE 10518 - How Many Calls? 5549
44.58%
1420
88.52%
FILE 10862 - Connect the Cable Wires 3650
55.81%
1596
91.48%
FILE 10334 - Ray Through Glasses 12565
52.09%
5713
89.03%
FILE 10229 - Modular Fibonacci 18961
37.03%
5269
79.90%
FILE 763 - Fibinary Numbers 11617
23.99%
2597
71.78%
FILE 10236 - The Fibonacci Primes 3903
25.21%
718
61.98%
FILE 991 - Safe Salutations 10999
37.79%
3188
90.87%
FILE 10079 - Pizza Cutting 55181
44.34%
18631
94.18%
FILE 10940 - Throwing cards away II 12578
49.59%
4374
86.10%
FILE 10359 - Tiling 4923
53.24%
2082
93.95%
FILE 10519 - !! Really Strange !! 4877
37.91%
1774
84.55%
FILE 10918 - Tri Tiling 5724
60.08%
2428
96.29%
FILE 11069 - A Graph Problem 5993
72.25%
3041
97.57%
FILE 10910 - Marks Distribution 6794
52.41%
2511
93.19%
FILE 10254 - The Priest Mathematician 5890
45.35%
1763
86.05%
FILE 10328 - Coin Toss 3000
39.73%
856
78.74%
FILE 10157 - Expressions 5734
33.31%
1542
70.17%
FILE 10247 - Complete Tree Labeling 3809
40.88%
1180
81.02%
FILE 10516 - Another Counting Problem 807
45.85%
333
89.19%
FILE 10128 - Queue 8782
51.33%
3000
89.20%
FILE 10081 - Tight Words 5673
51.95%
2286
90.33%
FILE 10943 - How do you add? 20810
49.23%
6108
93.76%
FILE 10721 - Bar Codes 9897
53.28%
3447
94.34%
FILE 10912 - Simple Minded Hashing 7887
40.42%
2120
89.39%
FILE 10616 - Divisible Group Sums 16080
37.16%
3902
90.44%
FILE 11125 - Arrange Some Marbles 1502
38.42%
421
85.99%
FILE 10205 - Stack 'em Up 19422
32.96%
5552
82.82%
FILE 701 - The Archeologists' Dilemma 23408
32.40%
4581
68.63%
FILE 696 - How Many Knights 17073
38.68%
5066
88.97%
FILE 254 - Towers of Hanoi 7034
19.93%
1774
50.11%
FILE 10994 - Simple Addition 12020
29.38%
2747
64.87%
FILE 306 - Cipher 11490
22.24%
2477
63.26%
FILE 10570 - Meeting with Aliens 3539
44.00%
820
83.29%
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