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Browse Problems
Title Total Submissions / Solving % Total Users / Solving %
FILE 138 - Street Numbers 22166
45.47%
9007
84.76%
FILE 10006 - Carmichael Numbers 45611
38.05%
10987
85.40%
FILE 128 - Software CRC 20278
42.91%
4544
88.03%
FILE 106 - Fermat vs. Pythagoras 30334
34.13%
7160
67.37%
FILE 10673 - Play with Floor and Ceil 12700
48.59%
3914
88.99%
FILE 11121 - Base -2 6152
58.09%
2474
94.34%
FILE 10791 - Minimum Sum LCM 24804
27.21%
3304
83.08%
FILE 10717 - Mint 7617
39.82%
2275
87.65%
FILE 10820 - Send a Table 9273
59.25%
2688
91.44%
FILE 571 - Jugs 10371
45.90%
3071
87.66%
FILE 11029 - Leading and Trailing 11277
33.25%
2772
79.00%
FILE 10023 - Square root 50798
23.12%
6440
32.75%
FILE 10308 - Roads in the North 9815
34.87%
1966
73.04%
FILE 10105 - Polynomial Coefficients 9811
63.78%
4634
92.73%
FILE 10375 - Choose and divide 9954
49.80%
2554
84.10%
FILE 11027 - Palindromic Permutation 1857
39.15%
479
77.66%
FILE 10056 - What is the Probability ? 19290
42.58%
5263
90.42%
FILE 10491 - Cows and Cars 10211
67.92%
4147
96.12%
FILE 10759 - Dice Throwing 3782
61.95%
1614
96.53%
FILE 542 - France '98 3422
62.48%
1832
90.07%
FILE 10277 - Boastin' Red Socks 2390
27.45%
518
78.96%
FILE 10169 - Urn-ball Probabilities! 2274
37.99%
654
77.06%
FILE 11181 - Probability|Given 6443
57.22%
1619
95.86%
FILE 557 - Burger 4446
38.57%
1436
62.33%
FILE 10900 - So you want to be a 2n-aire? 1743
78.37%
785
92.99%
FILE 11176 - Winning Streak 1752
53.48%
630
88.10%
FILE 10417 - Gift Exchanging 1104
36.05%
326
73.31%
FILE 10183 - How Many Fibs? 25762
33.86%
7514
83.90%
FILE 10303 - How Many Trees? 7481
40.42%
2754
79.38%
FILE 10518 - How Many Calls? 5568
44.65%
1421
88.53%
FILE 10862 - Connect the Cable Wires 3662
55.82%
1600
91.50%
FILE 10334 - Ray Through Glasses 12576
52.08%
5717
89.02%
FILE 10229 - Modular Fibonacci 19035
37.12%
5289
79.98%
FILE 763 - Fibinary Numbers 11637
24.01%
2599
71.76%
FILE 10236 - The Fibonacci Primes 3912
25.20%
719
62.03%
FILE 991 - Safe Salutations 11084
37.70%
3198
90.87%
FILE 10079 - Pizza Cutting 55398
44.37%
18663
94.19%
FILE 10940 - Throwing cards away II 12606
49.60%
4375
86.10%
FILE 10359 - Tiling 4930
53.27%
2084
93.95%
FILE 10519 - !! Really Strange !! 4877
37.91%
1774
84.55%
FILE 10918 - Tri Tiling 5754
60.20%
2428
96.29%
FILE 11069 - A Graph Problem 6002
72.26%
3042
97.57%
FILE 10910 - Marks Distribution 6806
52.39%
2513
93.20%
FILE 10254 - The Priest Mathematician 6035
45.05%
1810
86.02%
FILE 10328 - Coin Toss 3000
39.73%
856
78.74%
FILE 10157 - Expressions 5752
33.43%
1554
70.21%
FILE 10247 - Complete Tree Labeling 3862
40.63%
1193
81.06%
FILE 10516 - Another Counting Problem 807
45.85%
333
89.19%
FILE 10128 - Queue 8831
51.30%
3017
89.16%
FILE 10081 - Tight Words 5698
52.04%
2292
90.36%
FILE 10943 - How do you add? 20832
49.22%
6112
93.77%
FILE 10721 - Bar Codes 10115
53.90%
3469
94.35%
FILE 10912 - Simple Minded Hashing 7948
40.53%
2127
89.37%
FILE 10616 - Divisible Group Sums 16088
37.18%
3904
90.45%
FILE 11125 - Arrange Some Marbles 1502
38.42%
421
85.99%
FILE 10205 - Stack 'em Up 19839
33.42%
5755
83.35%
FILE 701 - The Archeologists' Dilemma 23446
32.43%
4597
68.70%
FILE 696 - How Many Knights 17101
38.69%
5078
88.95%
FILE 254 - Towers of Hanoi 7039
19.96%
1777
50.20%
FILE 10994 - Simple Addition 12033
29.39%
2748
64.88%
FILE 306 - Cipher 11509
22.27%
2480
63.31%
FILE 10570 - Meeting with Aliens 3591
43.53%
824
83.37%
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