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 % | ||||
|
10300 - Ecological Premium | 56498 |
67.11%
|
30881 |
96.94%
|
|
|
|
10301 - Rings and Glue | 9583 |
26.12%
|
2123 |
80.50%
|
|
|
|
10302 - Summation of Polynomials | 29001 |
45.91%
|
11396 |
92.35%
|
|
|
|
10303 - How Many Trees? | 7488 |
40.41%
|
2755 |
79.38%
|
|
|
|
10304 - Optimal Binary Search Tree | 9216 |
52.44%
|
2371 |
88.53%
|
|
|
10305 - Ordering Tasks | 87748 |
43.58%
|
17642 |
90.87%
|
|
|
|
10306 - e-Coins | 8100 |
57.49%
|
3228 |
95.45%
|
|
|
|
10307 - Killing Aliens in Borg Maze | 4927 |
41.14%
|
1374 |
88.65%
|
|
|
|
10308 - Roads in the North | 9951 |
35.04%
|
1989 |
73.20%
|
|
|
|
10309 - Turn the Lights Off | 3234 |
60.27%
|
1386 |
94.08%
|
|
|
|
10310 - Dog and Gopher | 21547 |
29.19%
|
5172 |
84.09%
|
|
|
|
10311 - Goldbach and Euler | 27306 |
22.50%
|
3620 |
69.09%
|
|
|
|
10312 - Expression Bracketing | 2495 |
55.99%
|
1090 |
93.58%
|
|
|
|
10313 - Pay the Price | 12050 |
27.49%
|
2176 |
83.09%
|
|
|
|
10314 - Three Pigs | 4418 |
2.85%
|
279 |
14.34%
|
|
|
|
10315 - Poker Hands | 21740 |
29.44%
|
5570 |
82.39%
|
|
|
|
10316 - Airline Hub | 2857 |
24.29%
|
642 |
73.52%
|
|
|
|
10317 - Equating Equations | 2693 |
14.82%
|
526 |
36.69%
|
|
|
|
10318 - Security Panel | 3810 |
41.78%
|
824 |
89.32%
|
|
|
|
10319 - Manhattan | 3353 |
34.06%
|
919 |
80.96%
|
|
|
|
10320 - Cow Trouble! Help Please!! | 1207 |
32.48%
|
429 |
65.03%
|
|
|
|
10321 - Polygon Intersection | 1976 |
22.06%
|
396 |
65.40%
|
|
|
|
10322 - The Four in One Stadium | 660 |
23.33%
|
150 |
54.00%
|
|
|
|
10323 - Factorial! You Must be Kidding!!! | 46132 |
26.46%
|
10074 |
81.37%
|
|
|
|
10324 - Zeros and Ones | 47946 |
33.54%
|
11500 |
85.55%
|
|
|
|
10325 - The Lottery | 11780 |
38.04%
|
2799 |
76.56%
|
|
|
|
10326 - The Polynomial Equation | 3316 |
37.03%
|
972 |
85.60%
|
|
|
|
10327 - Flip Sort | 58161 |
42.71%
|
16363 |
91.45%
|
|
|
|
10328 - Coin Toss | 3049 |
39.75%
|
858 |
78.79%
|
|
|
|
10329 - Combinatorial Expression | 1559 |
28.22%
|
414 |
73.43%
|
|
|
|
10330 - Power Transmission | 13974 |
41.26%
|
2868 |
91.04%
|
|
|
|
10331 - The Flyover Construction | 1568 |
24.49%
|
375 |
66.67%
|
|
|
|
10332 - The Absent Minded Professor | 797 |
20.08%
|
217 |
44.24%
|
|
|
|
10333 - The Tower of ASCII | 1079 |
51.07%
|
486 |
83.54%
|
|
|
|
10334 - Ray Through Glasses | 12593 |
52.07%
|
5719 |
89.02%
|
|
|
|
10335 - Ray Inside a Polygon | 1441 |
15.48%
|
186 |
47.31%
|
|
|
|
10336 - Rank the Languages | 14965 |
59.05%
|
5828 |
95.64%
|
|
|
|
10337 - Flight Planner | 6918 |
50.94%
|
2834 |
92.87%
|
|
|
|
10338 - Mischievous Children | 15039 |
45.76%
|
5653 |
89.44%
|
|
|
|
10339 - Watching Watches | 2627 |
33.38%
|
719 |
75.66%
|
|
|
|
10340 - All in All | 102222 |
35.53%
|
20993 |
90.74%
|
|
|
|
10341 - Solve It | 54997 |
31.95%
|
8881 |
88.31%
|
|
|
|
10342 - Always Late | 4725 |
23.30%
|
914 |
70.24%
|
|
|
|
10343 - Base64 Decoding | 2631 |
15.20%
|
490 |
53.06%
|
|
|
|
10344 - 23 out of 5 | 35253 |
36.14%
|
6751 |
84.64%
|
|
|
|
10345 - Cricket/Football Goes Down | 726 |
35.95%
|
260 |
56.54%
|
|
|
|
10346 - Peter's Smokes | 60684 |
44.88%
|
20483 |
92.38%
|
|
|
|
10347 - Medians | 21036 |
31.84%
|
5209 |
89.48%
|
|
|
|
10348 - Submarines | 1131 |
35.81%
|
373 |
79.89%
|
|
|
|
10349 - Antenna Placement | 3767 |
46.91%
|
1336 |
82.34%
|
|
|
|
10350 - Liftless EME | 2063 |
57.83%
|
903 |
90.70%
|
|
|
|
10351 - Cutting Diamonds | 867 |
47.87%
|
412 |
87.62%
|
|
|
|
10352 - Count the eWords | 1891 |
19.67%
|
389 |
58.61%
|
|
|
|
10353 - Circles in Hexagon :-) | 586 |
36.69%
|
231 |
58.01%
|
|
|
|
10354 - Avoiding Your Boss | 5972 |
25.18%
|
1235 |
80.24%
|
|
|
|
10355 - Superman | 1252 |
28.67%
|
320 |
72.81%
|
|
|
|
10356 - Rough Roads | 4517 |
37.59%
|
1249 |
84.39%
|
|
|
|
10357 - Playball !!! | 861 |
57.14%
|
469 |
89.13%
|
|
|
|
10358 - Matrix | 998 |
19.14%
|
255 |
42.75%
|
|
|
|
10359 - Tiling | 4943 |
53.33%
|
2091 |
93.93%
|
|
|
|
10360 - Rat Attack | 17348 |
36.64%
|
4392 |
85.31%
|
|
|
|
10361 - Automatic Poetry | 14342 |
49.35%
|
5552 |
92.11%
|
|
|
|
10362 - Trains | 1385 |
16.97%
|
213 |
61.03%
|
|
|
|
10363 - Tic Tac Toe | 14487 |
29.90%
|
3848 |
80.51%
|
|
|
|
10364 - Square | 15016 |
26.83%
|
3050 |
65.54%
|
|
|
|
10365 - Blocks | 4490 |
58.37%
|
2134 |
93.49%
|
|
|
|
10366 - Faucet Flow | 2097 |
30.81%
|
491 |
70.47%
|
|
|
|
10367 - Equations | 1207 |
25.35%
|
335 |
74.03%
|
|
|
|
10368 - Euclid's Game | 7868 |
37.25%
|
2680 |
78.77%
|
|
|
|
10369 - Arctic Network | 21720 |
44.12%
|
5831 |
91.80%
|
|
|
|
10370 - Above Average | 50595 |
54.64%
|
21000 |
95.22%
|
|
|
|
10371 - Time Zones | 3675 |
34.56%
|
1038 |
86.99%
|
|
|
|
10372 - Leaps Tall Buildings (in a single bound) | 766 |
47.26%
|
304 |
78.62%
|
|
|
|
10373 - The Brick Stops Here | 1272 |
30.90%
|
281 |
75.09%
|
|
|
|
10374 - Election | 7457 |
27.46%
|
1816 |
76.65%
|
|
|
|
10375 - Choose and divide | 9989 |
49.85%
|
2556 |
84.08%
|
|
|
|
10376 - Snakes | 641 |
22.93%
|
187 |
64.17%
|
|
|
|
10377 - Maze Traversal | 8191 |
37.61%
|
2811 |
83.56%
|
|
|
|
10378 - Complex Numbers | 2938 |
16.85%
|
438 |
62.79%
|
|
|
|
10379 - Pit Stop Strategy | 378 |
36.51%
|
190 |
56.84%
|
|
|
|
10380 - Shogi Tournament | 1274 |
20.88%
|
211 |
66.82%
|
|
|
|
10381 - The Rock | 980 |
37.04%
|
229 |
72.93%
|
|
|
|
10382 - Watering Grass | 29074 |
22.29%
|
3871 |
66.29%
|
|
|
|
10383 - Queen vs Rook | 245 |
18.78%
|
60 |
46.67%
|
|
|
|
10384 - The Wall Pushers | 2181 |
32.83%
|
339 |
78.76%
|
|
|
|
10385 - Duathlon | 5172 |
30.70%
|
797 |
82.31%
|
|
|
|
10386 - Circles in Triangle | 838 |
50.60%
|
349 |
81.66%
|
|
|
|
10387 - Billiard | 2443 |
67.99%
|
1348 |
95.25%
|
|
|
|
10388 - Snap | 2542 |
24.15%
|
623 |
72.71%
|
|
|
|
10389 - Subway | 5071 |
29.84%
|
987 |
79.94%
|
|
|
|
10390 - Bean Counting | 1038 |
29.00%
|
378 |
72.75%
|
|
|
|
10391 - Compound Words | 23142 |
41.25%
|
3912 |
87.12%
|
|
|
|
10392 - Factoring Large Numbers | 10513 |
49.66%
|
3443 |
90.12%
|
|
|
|
10393 - The One-Handed Typist | 4725 |
32.99%
|
1326 |
84.46%
|
|
|
|
10394 - Twin Primes | 42186 |
39.92%
|
9613 |
88.02%
|
|
|
|
10395 - Titans in Danger | 480 |
25.00%
|
204 |
42.16%
|
|
|
|
10396 - Vampire Numbers | 1736 |
37.44%
|
579 |
72.71%
|
|
|
|
10397 - Connect the Campus | 19123 |
35.46%
|
3914 |
87.99%
|
|
|
|
10398 - The Golden Pentagon | 849 |
29.09%
|
222 |
80.63%
|
|
|
|
10399 - Optimus Prime | 445 |
43.60%
|
169 |
76.33%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |