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 | 56006 |
67.13%
|
30794 |
96.96%
|
|
|
|
10301 - Rings and Glue | 9492 |
26.01%
|
2106 |
80.44%
|
|
|
|
10302 - Summation of Polynomials | 28933 |
45.85%
|
11361 |
92.33%
|
|
|
|
10303 - How Many Trees? | 7412 |
40.70%
|
2750 |
79.38%
|
|
|
|
10304 - Optimal Binary Search Tree | 8999 |
52.12%
|
2350 |
88.60%
|
|
|
10305 - Ordering Tasks | 85514 |
43.42%
|
17443 |
90.87%
|
|
|
|
10306 - e-Coins | 8043 |
57.49%
|
3215 |
95.49%
|
|
|
|
10307 - Killing Aliens in Borg Maze | 4884 |
40.83%
|
1357 |
88.87%
|
|
|
|
10308 - Roads in the North | 9481 |
34.94%
|
1930 |
72.64%
|
|
|
|
10309 - Turn the Lights Off | 3216 |
60.26%
|
1380 |
94.13%
|
|
|
|
10310 - Dog and Gopher | 21473 |
29.17%
|
5155 |
84.07%
|
|
|
|
10311 - Goldbach and Euler | 27111 |
22.52%
|
3605 |
69.13%
|
|
|
|
10312 - Expression Bracketing | 2453 |
56.01%
|
1080 |
93.70%
|
|
|
|
10313 - Pay the Price | 12023 |
27.45%
|
2169 |
83.08%
|
|
|
|
10314 - Three Pigs | 4405 |
2.77%
|
276 |
13.04%
|
|
|
|
10315 - Poker Hands | 21153 |
28.71%
|
5289 |
81.62%
|
|
|
|
10316 - Airline Hub | 2851 |
24.17%
|
636 |
73.43%
|
|
|
|
10317 - Equating Equations | 2674 |
14.70%
|
523 |
36.52%
|
|
|
|
10318 - Security Panel | 3799 |
41.70%
|
821 |
89.40%
|
|
|
|
10319 - Manhattan | 3338 |
34.09%
|
914 |
81.18%
|
|
|
|
10320 - Cow Trouble! Help Please!! | 1192 |
32.30%
|
425 |
64.47%
|
|
|
|
10321 - Polygon Intersection | 1967 |
22.01%
|
393 |
65.39%
|
|
|
|
10322 - The Four in One Stadium | 629 |
23.69%
|
143 |
53.15%
|
|
|
|
10323 - Factorial! You Must be Kidding!!! | 45537 |
26.39%
|
10061 |
81.38%
|
|
|
|
10324 - Zeros and Ones | 47584 |
33.40%
|
11433 |
85.51%
|
|
|
|
10325 - The Lottery | 11358 |
37.88%
|
2715 |
76.21%
|
|
|
|
10326 - The Polynomial Equation | 3248 |
36.76%
|
966 |
85.61%
|
|
|
|
10327 - Flip Sort | 57429 |
42.54%
|
16241 |
91.44%
|
|
|
|
10328 - Coin Toss | 2978 |
39.72%
|
852 |
78.76%
|
|
|
|
10329 - Combinatorial Expression | 1515 |
27.92%
|
406 |
73.15%
|
|
|
|
10330 - Power Transmission | 13683 |
40.76%
|
2837 |
91.01%
|
|
|
|
10331 - The Flyover Construction | 1558 |
24.39%
|
371 |
66.58%
|
|
|
|
10332 - The Absent Minded Professor | 779 |
20.03%
|
206 |
44.66%
|
|
|
|
10333 - The Tower of ASCII | 1075 |
50.98%
|
482 |
83.61%
|
|
|
|
10334 - Ray Through Glasses | 12542 |
52.10%
|
5708 |
89.03%
|
|
|
|
10335 - Ray Inside a Polygon | 1433 |
15.35%
|
183 |
46.99%
|
|
|
|
10336 - Rank the Languages | 14592 |
58.94%
|
5763 |
95.64%
|
|
|
|
10337 - Flight Planner | 6893 |
50.94%
|
2828 |
92.89%
|
|
|
|
10338 - Mischievous Children | 15023 |
45.74%
|
5646 |
89.46%
|
|
|
|
10339 - Watching Watches | 2614 |
33.40%
|
717 |
75.73%
|
|
|
|
10340 - All in All | 101606 |
35.43%
|
20899 |
90.71%
|
|
|
|
10341 - Solve It | 54148 |
31.81%
|
8848 |
88.31%
|
|
|
|
10342 - Always Late | 4666 |
22.91%
|
906 |
69.98%
|
|
|
|
10343 - Base64 Decoding | 2521 |
15.87%
|
488 |
53.28%
|
|
|
|
10344 - 23 out of 5 | 34136 |
36.06%
|
6661 |
84.63%
|
|
|
|
10345 - Cricket/Football Goes Down | 708 |
35.88%
|
255 |
55.69%
|
|
|
|
10346 - Peter's Smokes | 59936 |
44.76%
|
20440 |
92.37%
|
|
|
|
10347 - Medians | 20882 |
31.90%
|
5200 |
89.48%
|
|
|
|
10348 - Submarines | 1122 |
35.56%
|
369 |
79.67%
|
|
|
|
10349 - Antenna Placement | 3680 |
46.41%
|
1327 |
82.37%
|
|
|
|
10350 - Liftless EME | 2012 |
57.60%
|
890 |
90.90%
|
|
|
|
10351 - Cutting Diamonds | 862 |
47.80%
|
407 |
87.96%
|
|
|
|
10352 - Count the eWords | 1850 |
19.41%
|
384 |
58.07%
|
|
|
|
10353 - Circles in Hexagon :-) | 573 |
35.95%
|
227 |
56.83%
|
|
|
|
10354 - Avoiding Your Boss | 5903 |
25.00%
|
1220 |
80.16%
|
|
|
|
10355 - Superman | 1237 |
28.29%
|
314 |
72.93%
|
|
|
|
10356 - Rough Roads | 4505 |
37.58%
|
1246 |
84.35%
|
|
|
|
10357 - Playball !!! | 851 |
57.58%
|
467 |
89.29%
|
|
|
|
10358 - Matrix | 982 |
18.33%
|
249 |
41.37%
|
|
|
|
10359 - Tiling | 4910 |
53.20%
|
2077 |
94.03%
|
|
|
|
10360 - Rat Attack | 17280 |
36.61%
|
4370 |
85.40%
|
|
|
|
10361 - Automatic Poetry | 14330 |
49.32%
|
5545 |
92.14%
|
|
|
|
10362 - Trains | 1369 |
16.87%
|
204 |
61.76%
|
|
|
|
10363 - Tic Tac Toe | 14445 |
29.89%
|
3831 |
80.50%
|
|
|
|
10364 - Square | 14891 |
26.79%
|
3033 |
65.58%
|
|
|
|
10365 - Blocks | 4379 |
57.98%
|
2093 |
93.41%
|
|
|
|
10366 - Faucet Flow | 2062 |
30.21%
|
481 |
70.27%
|
|
|
|
10367 - Equations | 1195 |
25.02%
|
330 |
74.24%
|
|
|
|
10368 - Euclid's Game | 7756 |
37.12%
|
2660 |
78.76%
|
|
|
|
10369 - Arctic Network | 21333 |
43.97%
|
5783 |
91.82%
|
|
|
|
10370 - Above Average | 50256 |
54.62%
|
20972 |
95.23%
|
|
|
|
10371 - Time Zones | 3656 |
34.55%
|
1032 |
87.02%
|
|
|
|
10372 - Leaps Tall Buildings (in a single bound) | 761 |
47.17%
|
301 |
78.74%
|
|
|
|
10373 - The Brick Stops Here | 1267 |
30.70%
|
278 |
75.18%
|
|
|
|
10374 - Election | 7117 |
27.24%
|
1810 |
76.63%
|
|
|
|
10375 - Choose and divide | 9931 |
49.75%
|
2547 |
84.10%
|
|
|
|
10376 - Snakes | 635 |
22.36%
|
183 |
63.39%
|
|
|
|
10377 - Maze Traversal | 8109 |
37.56%
|
2804 |
83.56%
|
|
|
|
10378 - Complex Numbers | 2924 |
16.79%
|
435 |
62.76%
|
|
|
|
10379 - Pit Stop Strategy | 360 |
35.00%
|
182 |
56.59%
|
|
|
|
10380 - Shogi Tournament | 1265 |
20.55%
|
208 |
66.83%
|
|
|
|
10381 - The Rock | 977 |
36.95%
|
227 |
73.13%
|
|
|
|
10382 - Watering Grass | 28847 |
22.15%
|
3825 |
66.01%
|
|
|
|
10383 - Queen vs Rook | 239 |
18.83%
|
57 |
47.37%
|
|
|
|
10384 - The Wall Pushers | 2148 |
32.64%
|
333 |
78.98%
|
|
|
|
10385 - Duathlon | 5092 |
30.48%
|
783 |
82.12%
|
|
|
|
10386 - Circles in Triangle | 831 |
50.54%
|
344 |
81.69%
|
|
|
|
10387 - Billiard | 2426 |
67.85%
|
1340 |
95.30%
|
|
|
|
10388 - Snap | 2357 |
23.93%
|
576 |
72.05%
|
|
|
|
10389 - Subway | 5007 |
29.82%
|
979 |
79.98%
|
|
|
|
10390 - Bean Counting | 1029 |
28.57%
|
371 |
72.51%
|
|
|
|
10391 - Compound Words | 22959 |
41.21%
|
3877 |
87.10%
|
|
|
|
10392 - Factoring Large Numbers | 10455 |
49.55%
|
3436 |
90.16%
|
|
|
|
10393 - The One-Handed Typist | 4685 |
32.91%
|
1318 |
84.45%
|
|
|
|
10394 - Twin Primes | 41406 |
39.65%
|
9545 |
87.99%
|
|
|
|
10395 - Titans in Danger | 471 |
24.42%
|
200 |
41.00%
|
|
|
|
10396 - Vampire Numbers | 1711 |
37.17%
|
577 |
72.79%
|
|
|
|
10397 - Connect the Campus | 18891 |
35.41%
|
3905 |
88.02%
|
|
|
|
10398 - The Golden Pentagon | 845 |
28.88%
|
218 |
80.73%
|
|
|
|
10399 - Optimus Prime | 439 |
43.51%
|
164 |
77.44%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |