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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 138 - Street Numbers 22192
45.51%
9015
84.76%
FILE 10006 - Carmichael Numbers 45654
38.06%
10994
85.40%
FILE 128 - Software CRC 20291
42.95%
4547
88.04%
FILE 106 - Fermat vs. Pythagoras 30366
34.15%
7170
67.42%
FILE 10673 - Play with Floor and Ceil 12727
48.66%
3928
89.03%
FILE 11121 - Base -2 6164
58.14%
2477
94.35%
FILE 10791 - Minimum Sum LCM 24886
27.21%
3307
83.04%
FILE 10717 - Mint 7657
39.81%
2287
87.71%
FILE 10820 - Send a Table 9283
59.29%
2692
91.46%
FILE 571 - Jugs 10412
45.86%
3074
87.70%
FILE 11029 - Leading and Trailing 11422
33.29%
2819
79.00%
FILE 10023 - Square root 50824
23.12%
6443
32.78%
FILE 10308 - Roads in the North 9955
35.07%
1990
73.22%
FILE 10105 - Polynomial Coefficients 9828
63.81%
4648
92.73%
FILE 10375 - Choose and divide 9989
49.85%
2556
84.08%
FILE 11027 - Palindromic Permutation 1860
39.19%
479
77.66%
FILE 10056 - What is the Probability ? 19560
42.74%
5295
90.48%
FILE 10491 - Cows and Cars 10252
67.92%
4156
96.10%
FILE 10759 - Dice Throwing 3790
61.98%
1617
96.54%
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! 2313
38.22%
667
77.36%
FILE 11181 - Probability|Given 6602
57.38%
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 1757
53.44%
631
88.11%
FILE 10417 - Gift Exchanging 1107
36.04%
328
73.17%
FILE 10183 - How Many Fibs? 25805
33.87%
7524
83.89%
FILE 10303 - How Many Trees? 7488
40.41%
2755
79.38%
FILE 10518 - How Many Calls? 5596
44.71%
1427
88.58%
FILE 10862 - Connect the Cable Wires 3677
55.89%
1603
91.52%
FILE 10334 - Ray Through Glasses 12593
52.07%
5719
89.02%
FILE 10229 - Modular Fibonacci 19086
37.19%
5302
80.01%
FILE 763 - Fibinary Numbers 11651
24.06%
2604
71.81%
FILE 10236 - The Fibonacci Primes 3915
25.24%
721
62.14%
FILE 991 - Safe Salutations 11180
37.67%
3215
90.79%
FILE 10079 - Pizza Cutting 55496
44.39%
18690
94.18%
FILE 10940 - Throwing cards away II 12616
49.63%
4376
86.11%
FILE 10359 - Tiling 4943
53.33%
2091
93.93%
FILE 10519 - !! Really Strange !! 4877
37.91%
1774
84.55%
FILE 10918 - Tri Tiling 5759
60.22%
2430
96.30%
FILE 11069 - A Graph Problem 6010
72.28%
3045
97.57%
FILE 10910 - Marks Distribution 6811
52.43%
2514
93.20%
FILE 10254 - The Priest Mathematician 6054
45.08%
1815
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 808
45.92%
334
89.22%
FILE 10128 - Queue 8868
51.26%
3029
89.14%
FILE 10081 - Tight Words 5725
52.09%
2303
90.40%
FILE 10943 - How do you add? 20857
49.23%
6118
93.77%
FILE 10721 - Bar Codes 10125
53.93%
3472
94.35%
FILE 10912 - Simple Minded Hashing 7999
40.54%
2144
89.41%
FILE 10616 - Divisible Group Sums 16105
37.21%
3908
90.43%
FILE 11125 - Arrange Some Marbles 1517
38.69%
422
86.02%
FILE 10205 - Stack 'em Up 19882
33.54%
5793
83.46%
FILE 701 - The Archeologists' Dilemma 23492
32.53%
4632
68.91%
FILE 696 - How Many Knights 17141
38.70%
5090
88.96%
FILE 254 - Towers of Hanoi 7043
20.01%
1779
50.25%
FILE 10994 - Simple Addition 12044
29.41%
2751
64.89%
FILE 306 - Cipher 11517
22.29%
2483
63.31%
FILE 10570 - Meeting with Aliens 3592
43.54%
825
83.39%
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