Browse Problems 
Our Patreons
Diamond Sponsors
Steven & Felix Halim
Reinardus Pradhitya
Gold Sponsors
--- YOUR NAME HERE ----
Silver Sponsors
--- YOUR NAME HERE ----
Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Contribute
Bitcoin:
1ojudgeapLUjJcnUm
ze67a4w3TJ6WnPxo
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
11000 - Bee | 25568 |
45.10%
|
8304 |
92.93%
|
|
|
|
11001 - Necklace | 6229 |
47.46%
|
1981 |
90.31%
|
|
|
|
11002 - Towards Zero | 3996 |
33.01%
|
693 |
80.09%
|
|
|
|
11003 - Boxes | 10190 |
33.79%
|
2427 |
80.96%
|
|
|
|
11004 - Changing Roadmap | 682 |
51.03%
|
318 |
86.79%
|
|
|
|
11005 - Cheapest Base | 13056 |
38.14%
|
3418 |
90.96%
|
|
|
11006 - Wheel Good | 499 |
25.65%
|
127 |
59.84%
|
|
|
|
11007 - Mini Cube | 1080 |
33.70%
|
116 |
56.90%
|
|
|
|
11008 - Antimatter Ray Clearcutting | 4112 |
27.72%
|
738 |
80.62%
|
|
|
|
11009 - Geometry Once Again | 221 |
50.68%
|
71 |
76.06%
|
|
|
|
11010 - Tic-Tac-Tough | 683 |
28.99%
|
162 |
61.73%
|
|
|
|
11011 - Numerical Methods! A Satire | 731 |
37.89%
|
202 |
77.72%
|
|
|
|
11012 - Cosmic Cabbages | 1842 |
45.66%
|
645 |
81.55%
|
|
|
|
11013 - Get Straight | 1181 |
34.12%
|
295 |
80.00%
|
|
|
|
11014 - Make a Crystal | 841 |
48.39%
|
225 |
73.78%
|
|
|
|
11015 - 05-2 Rendezvous | 7120 |
42.47%
|
2257 |
93.40%
|
|
|
|
11016 - Square Counting | 406 |
30.79%
|
108 |
72.22%
|
|
|
|
11017 - A Greener World | 612 |
22.22%
|
117 |
72.65%
|
|
|
|
11018 - Mars Buggy | 409 |
32.76%
|
112 |
71.43%
|
|
|
|
11019 - Matrix Matcher | 10638 |
33.18%
|
1381 |
73.64%
|
|
|
|
11020 - Efficient Solutions | 4876 |
37.49%
|
803 |
82.19%
|
|
|
|
11021 - Tribles | 4608 |
58.68%
|
1123 |
94.66%
|
|
|
|
11022 - String Factoring | 3596 |
66.18%
|
1516 |
92.94%
|
|
|
|
11023 - Multisets and Sequences | 427 |
20.61%
|
70 |
50.00%
|
|
|
|
11024 - Circular Lock | 601 |
43.26%
|
260 |
83.46%
|
|
|
|
11025 - Mr. And Mrs. Hamilton | 317 |
25.87%
|
97 |
53.61%
|
|
|
|
11026 - A Grouping Problem | 2355 |
54.14%
|
823 |
93.92%
|
|
|
|
11027 - Palindromic Permutation | 1852 |
39.04%
|
476 |
77.73%
|
|
|
|
11028 - Sum of Product | 764 |
57.59%
|
430 |
87.44%
|
|
|
|
11029 - Leading and Trailing | 10990 |
33.27%
|
2702 |
79.02%
|
|
|
|
11030 - Predator II | 398 |
49.50%
|
165 |
87.88%
|
|
|
|
11031 - Looking for a Subset | 1287 |
21.06%
|
273 |
57.51%
|
|
|
|
11032 - Function Overloading | 2484 |
26.77%
|
576 |
59.38%
|
|
|
|
11033 - Help my Brother | 782 |
15.35%
|
135 |
57.04%
|
|
|
|
11034 - Ferry Loading IV | 17663 |
43.06%
|
5170 |
88.14%
|
|
|
|
11035 - Card Hands | 2018 |
27.25%
|
356 |
71.63%
|
|
|
|
11036 - Eventually Periodic Sequence | 1474 |
49.39%
|
373 |
83.11%
|
|
|
|
11037 - Point of View in Flatland | 301 |
27.91%
|
98 |
60.20%
|
|
|
|
11038 - How Many O's? | 3982 |
60.60%
|
1356 |
85.91%
|
|
|
|
11039 - Building designing | 11275 |
51.18%
|
3055 |
92.67%
|
|
|
|
11040 - Add bricks in the wall | 7030 |
53.97%
|
2273 |
92.52%
|
|
|
|
11041 - Quarter-Finals with Brazil!? No!!! | 519 |
21.97%
|
105 |
37.14%
|
|
|
|
11042 - Complex, difficult and complicated | 1617 |
57.39%
|
786 |
91.09%
|
|
|
|
11043 - Fast and Easy Data Compressor | 434 |
30.65%
|
126 |
77.78%
|
|
|
|
11044 - Searching for Nessy | 40123 |
68.02%
|
21847 |
96.52%
|
|
|
|
11045 - My T-shirt suits me | 8768 |
55.79%
|
2549 |
91.72%
|
|
|
|
11046 - Numbers and operations | 471 |
35.46%
|
68 |
60.29%
|
|
|
|
11047 - The Scrooge Co Problem | 2120 |
27.88%
|
539 |
79.59%
|
|
|
|
11048 - Automatic Correction of Misspellings | 2618 |
37.55%
|
806 |
81.39%
|
|
|
|
11049 - Basic wall maze | 1947 |
55.62%
|
952 |
90.97%
|
|
|
|
11050 - Construct the wall maze | 274 |
24.45%
|
97 |
46.39%
|
|
|
|
11051 - Dihedral groups | 859 |
37.83%
|
265 |
84.91%
|
|
|
|
11052 - Economic phone calls | 626 |
37.86%
|
216 |
80.09%
|
|
|
|
11053 - Flavius Josephus Reloaded | 3508 |
62.54%
|
1271 |
93.55%
|
|
|
|
11054 - Wine trading in Gergovia | 12829 |
58.43%
|
3679 |
95.57%
|
|
|
|
11055 - Homogeneous squares | 1550 |
52.13%
|
545 |
79.82%
|
|
|
|
11056 - Formula 1 | 4377 |
34.09%
|
1336 |
88.10%
|
|
|
|
11057 - Exact Sum | 58484 |
33.50%
|
11238 |
89.56%
|
|
|
|
11058 - Encoding | 1452 |
38.98%
|
512 |
86.33%
|
|
|
|
11059 - Maximum Product | 60464 |
25.04%
|
7852 |
81.65%
|
|
|
|
11060 - Beverages | 20127 |
32.91%
|
4929 |
84.66%
|
|
|
|
11061 - Playing War | 357 |
56.58%
|
129 |
75.19%
|
|
|
|
11062 - Andy's Second Dictionary | 7778 |
41.15%
|
2412 |
87.69%
|
|
|
|
11063 - B2-Sequence | 29764 |
23.40%
|
4559 |
84.32%
|
|
|
|
11064 - Number Theory | 5269 |
50.79%
|
1598 |
92.49%
|
|
|
|
11065 - A Gentlemen's Agreement | 1141 |
43.38%
|
344 |
88.08%
|
|
|
|
11066 - Aragorn | 371 |
27.49%
|
101 |
75.25%
|
|
|
|
11067 - Little Red Riding Hood | 3229 |
45.56%
|
1103 |
94.20%
|
|
|
|
11068 - An Easy Task | 3502 |
55.11%
|
1510 |
95.30%
|
|
|
|
11069 - A Graph Problem | 5922 |
72.26%
|
3037 |
97.60%
|
|
|
|
11070 - The Good Old Times | 983 |
54.12%
|
450 |
86.89%
|
|
|
|
11071 - Permutation Representation | 465 |
41.29%
|
157 |
62.42%
|
|
|
|
11072 - Points | 3305 |
28.56%
|
438 |
73.74%
|
|
|
|
11073 - Euler's Totient Function | 904 |
33.08%
|
180 |
73.33%
|
|
|
|
11074 - Draw Grid | 3710 |
50.43%
|
1458 |
94.51%
|
|
|
|
11075 - Collage | 262 |
24.81%
|
82 |
47.56%
|
|
|
|
11076 - Add Again | 6569 |
37.19%
|
1285 |
80.54%
|
|
|
|
11077 - Find the Permutations | 2116 |
52.65%
|
627 |
92.66%
|
|
|
|
11078 - Open Credit System | 18557 |
47.20%
|
4746 |
90.94%
|
|
|
|
11079 - What's the Time? | 728 |
8.65%
|
101 |
41.58%
|
|
|
|
11080 - Place the Guards | 13691 |
37.66%
|
3698 |
90.21%
|
|
|
|
11081 - Strings | 2402 |
35.26%
|
663 |
75.11%
|
|
|
|
11082 - Matrix Decompressing | 4636 |
42.77%
|
787 |
86.66%
|
|
|
|
11083 - Zeroes Revisited | 670 |
45.22%
|
257 |
91.44%
|
|
|
|
11084 - Anagram Division | 3005 |
31.31%
|
678 |
66.81%
|
|
|
|
11085 - Back to the 8-Queens | 12440 |
50.55%
|
3986 |
93.75%
|
|
|
|
11086 - Composite Prime | 4091 |
48.67%
|
957 |
89.03%
|
|
|
|
11087 - Divisibility Testing | 2495 |
31.10%
|
485 |
71.96%
|
|
|
|
11088 - End up with More Teams | 2588 |
42.19%
|
824 |
86.41%
|
|
|
|
11089 - Fi-binary Number | 2362 |
62.53%
|
1168 |
92.89%
|
|
|
|
11090 - Going in Cycle!! | 12264 |
30.66%
|
1610 |
80.00%
|
|
|
|
11091 - How many Knight Placing? | 412 |
53.64%
|
182 |
87.36%
|
|
|
|
11092 - IIUC HexWorld | 601 |
42.10%
|
255 |
80.39%
|
|
|
|
11093 - Just Finish it up | 8921 |
43.06%
|
2224 |
84.58%
|
|
|
|
11094 - Continents | 29857 |
30.37%
|
5434 |
88.90%
|
|
|
|
11095 - Tabriz City | 958 |
27.56%
|
237 |
67.93%
|
|
|
|
11096 - Nails | 5096 |
28.18%
|
899 |
82.42%
|
|
|
|
11097 - Poor My Problem! :-( | 890 |
21.69%
|
172 |
73.26%
|
|
|
|
11098 - Battle II | 625 |
17.92%
|
133 |
60.15%
|
|
|
|
11099 - Next Same-Factored | 4122 |
20.21%
|
665 |
58.35%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |