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 | 24748 |
45.58%
|
8265 |
92.97%
|
|
|
|
11001 - Necklace | 6062 |
47.79%
|
1957 |
90.29%
|
|
|
|
11002 - Towards Zero | 3910 |
32.76%
|
685 |
80.29%
|
|
|
|
11003 - Boxes | 9888 |
34.06%
|
2408 |
80.94%
|
|
|
|
11004 - Changing Roadmap | 679 |
50.96%
|
315 |
86.98%
|
|
|
|
11005 - Cheapest Base | 11876 |
38.48%
|
3262 |
90.68%
|
|
|
11006 - Wheel Good | 497 |
25.75%
|
127 |
59.84%
|
|
|
|
11007 - Mini Cube | 1078 |
33.67%
|
115 |
56.52%
|
|
|
|
11008 - Antimatter Ray Clearcutting | 4081 |
27.52%
|
728 |
80.36%
|
|
|
|
11009 - Geometry Once Again | 218 |
51.38%
|
71 |
76.06%
|
|
|
|
11010 - Tic-Tac-Tough | 683 |
28.99%
|
162 |
61.73%
|
|
|
|
11011 - Numerical Methods! A Satire | 730 |
37.81%
|
201 |
77.61%
|
|
|
|
11012 - Cosmic Cabbages | 1842 |
45.66%
|
645 |
81.55%
|
|
|
|
11013 - Get Straight | 1124 |
34.43%
|
286 |
80.07%
|
|
|
|
11014 - Make a Crystal | 814 |
48.89%
|
220 |
73.18%
|
|
|
|
11015 - 05-2 Rendezvous | 7099 |
42.37%
|
2248 |
93.42%
|
|
|
|
11016 - Square Counting | 395 |
30.89%
|
105 |
73.33%
|
|
|
|
11017 - A Greener World | 606 |
21.78%
|
114 |
72.81%
|
|
|
|
11018 - Mars Buggy | 404 |
32.43%
|
110 |
70.91%
|
|
|
|
11019 - Matrix Matcher | 10080 |
32.80%
|
1265 |
72.41%
|
|
|
|
11020 - Efficient Solutions | 4813 |
37.34%
|
782 |
81.97%
|
|
|
|
11021 - Tribles | 4451 |
58.26%
|
1091 |
94.50%
|
|
|
|
11022 - String Factoring | 3327 |
65.73%
|
1427 |
92.64%
|
|
|
|
11023 - Multisets and Sequences | 426 |
20.66%
|
69 |
50.72%
|
|
|
|
11024 - Circular Lock | 601 |
43.26%
|
260 |
83.46%
|
|
|
|
11025 - Mr. And Mrs. Hamilton | 317 |
25.87%
|
97 |
53.61%
|
|
|
|
11026 - A Grouping Problem | 2346 |
54.05%
|
816 |
94.00%
|
|
|
|
11027 - Palindromic Permutation | 1851 |
39.01%
|
475 |
77.68%
|
|
|
|
11028 - Sum of Product | 754 |
57.43%
|
426 |
87.32%
|
|
|
|
11029 - Leading and Trailing | 10237 |
33.23%
|
2558 |
78.85%
|
|
|
|
11030 - Predator II | 398 |
49.50%
|
165 |
87.88%
|
|
|
|
11031 - Looking for a Subset | 1274 |
20.96%
|
271 |
57.56%
|
|
|
|
11032 - Function Overloading | 2471 |
26.43%
|
574 |
59.23%
|
|
|
|
11033 - Help my Brother | 782 |
15.35%
|
135 |
57.04%
|
|
|
|
11034 - Ferry Loading IV | 16253 |
42.91%
|
4973 |
87.91%
|
|
|
|
11035 - Card Hands | 2010 |
27.11%
|
353 |
71.39%
|
|
|
|
11036 - Eventually Periodic Sequence | 1225 |
46.04%
|
369 |
82.93%
|
|
|
|
11037 - Point of View in Flatland | 295 |
27.12%
|
95 |
58.95%
|
|
|
|
11038 - How Many O's? | 3844 |
61.19%
|
1333 |
85.97%
|
|
|
|
11039 - Building designing | 11208 |
51.14%
|
3034 |
92.62%
|
|
|
|
11040 - Add bricks in the wall | 6354 |
56.28%
|
2253 |
92.45%
|
|
|
|
11041 - Quarter-Finals with Brazil!? No!!! | 491 |
22.61%
|
98 |
36.73%
|
|
|
|
11042 - Complex, difficult and complicated | 1599 |
57.47%
|
781 |
91.04%
|
|
|
|
11043 - Fast and Easy Data Compressor | 430 |
30.47%
|
123 |
78.05%
|
|
|
|
11044 - Searching for Nessy | 38856 |
68.45%
|
21598 |
96.52%
|
|
|
|
11045 - My T-shirt suits me | 8625 |
55.66%
|
2536 |
91.64%
|
|
|
|
11046 - Numbers and operations | 461 |
35.57%
|
65 |
60.00%
|
|
|
|
11047 - The Scrooge Co Problem | 2064 |
27.96%
|
531 |
79.47%
|
|
|
|
11048 - Automatic Correction of Misspellings | 2592 |
37.35%
|
800 |
81.38%
|
|
|
|
11049 - Basic wall maze | 1937 |
55.65%
|
948 |
90.93%
|
|
|
|
11050 - Construct the wall maze | 268 |
25.00%
|
94 |
47.87%
|
|
|
|
11051 - Dihedral groups | 849 |
38.16%
|
264 |
84.85%
|
|
|
|
11052 - Economic phone calls | 620 |
37.90%
|
215 |
80.00%
|
|
|
|
11053 - Flavius Josephus Reloaded | 3344 |
62.92%
|
1238 |
93.70%
|
|
|
|
11054 - Wine trading in Gergovia | 12310 |
58.59%
|
3628 |
95.53%
|
|
|
|
11055 - Homogeneous squares | 1510 |
51.39%
|
538 |
79.93%
|
|
|
|
11056 - Formula 1 | 4366 |
34.08%
|
1333 |
88.07%
|
|
|
|
11057 - Exact Sum | 54978 |
33.37%
|
11133 |
89.59%
|
|
|
|
11058 - Encoding | 1405 |
38.65%
|
511 |
85.91%
|
|
|
|
11059 - Maximum Product | 59266 |
24.85%
|
7750 |
81.60%
|
|
|
|
11060 - Beverages | 19652 |
32.88%
|
4888 |
84.62%
|
|
|
|
11061 - Playing War | 357 |
56.58%
|
129 |
75.19%
|
|
|
|
11062 - Andy's Second Dictionary | 7571 |
41.33%
|
2399 |
87.66%
|
|
|
|
11063 - B2-Sequence | 26551 |
23.41%
|
4287 |
84.14%
|
|
|
|
11064 - Number Theory | 5109 |
50.73%
|
1584 |
92.49%
|
|
|
|
11065 - A Gentlemen's Agreement | 1136 |
43.40%
|
342 |
88.01%
|
|
|
|
11066 - Aragorn | 371 |
27.49%
|
101 |
75.25%
|
|
|
|
11067 - Little Red Riding Hood | 3172 |
45.65%
|
1092 |
94.32%
|
|
|
|
11068 - An Easy Task | 3472 |
55.39%
|
1504 |
95.35%
|
|
|
|
11069 - A Graph Problem | 5860 |
72.24%
|
3022 |
97.68%
|
|
|
|
11070 - The Good Old Times | 979 |
53.93%
|
448 |
86.83%
|
|
|
|
11071 - Permutation Representation | 458 |
41.27%
|
155 |
62.58%
|
|
|
|
11072 - Points | 3288 |
28.59%
|
435 |
73.56%
|
|
|
|
11073 - Euler's Totient Function | 899 |
33.15%
|
179 |
73.74%
|
|
|
|
11074 - Draw Grid | 3558 |
51.77%
|
1440 |
94.65%
|
|
|
|
11075 - Collage | 261 |
24.90%
|
81 |
48.15%
|
|
|
|
11076 - Add Again | 6464 |
37.42%
|
1274 |
80.53%
|
|
|
|
11077 - Find the Permutations | 2104 |
52.57%
|
622 |
92.60%
|
|
|
|
11078 - Open Credit System | 17005 |
48.23%
|
4585 |
90.86%
|
|
|
|
11079 - What's the Time? | 728 |
8.65%
|
101 |
41.58%
|
|
|
|
11080 - Place the Guards | 13326 |
37.54%
|
3654 |
90.18%
|
|
|
|
11081 - Strings | 2360 |
35.08%
|
653 |
75.04%
|
|
|
|
11082 - Matrix Decompressing | 4546 |
42.34%
|
765 |
86.67%
|
|
|
|
11083 - Zeroes Revisited | 664 |
45.18%
|
255 |
91.37%
|
|
|
|
11084 - Anagram Division | 2893 |
31.01%
|
665 |
66.32%
|
|
|
|
11085 - Back to the 8-Queens | 11965 |
50.60%
|
3950 |
93.75%
|
|
|
|
11086 - Composite Prime | 3930 |
47.61%
|
950 |
89.05%
|
|
|
|
11087 - Divisibility Testing | 2489 |
31.18%
|
484 |
72.11%
|
|
|
|
11088 - End up with More Teams | 2580 |
42.05%
|
821 |
86.36%
|
|
|
|
11089 - Fi-binary Number | 2359 |
62.53%
|
1166 |
92.88%
|
|
|
|
11090 - Going in Cycle!! | 11914 |
30.33%
|
1543 |
79.65%
|
|
|
|
11091 - How many Knight Placing? | 409 |
53.79%
|
180 |
87.78%
|
|
|
|
11092 - IIUC HexWorld | 600 |
42.00%
|
254 |
80.31%
|
|
|
|
11093 - Just Finish it up | 8790 |
43.08%
|
2196 |
84.56%
|
|
|
|
11094 - Continents | 28790 |
30.61%
|
5367 |
88.91%
|
|
|
|
11095 - Tabriz City | 958 |
27.56%
|
237 |
67.93%
|
|
|
|
11096 - Nails | 5052 |
28.05%
|
894 |
82.33%
|
|
|
|
11097 - Poor My Problem! :-( | 886 |
21.67%
|
170 |
73.53%
|
|
|
|
11098 - Battle II | 588 |
18.03%
|
133 |
59.40%
|
|
|
|
11099 - Next Same-Factored | 4095 |
20.10%
|
662 |
58.16%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |