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 | 56332 |
67.08%
|
30832 |
96.94%
|
|
|
|
10301 - Rings and Glue | 9508 |
26.02%
|
2111 |
80.39%
|
|
|
|
10302 - Summation of Polynomials | 28956 |
45.87%
|
11377 |
92.34%
|
|
|
|
10303 - How Many Trees? | 7415 |
40.71%
|
2752 |
79.36%
|
|
|
|
10304 - Optimal Binary Search Tree | 9032 |
52.21%
|
2355 |
88.58%
|
|
|
10305 - Ordering Tasks | 86417 |
43.48%
|
17517 |
90.85%
|
|
|
|
10306 - e-Coins | 8047 |
57.50%
|
3217 |
95.46%
|
|
|
|
10307 - Killing Aliens in Borg Maze | 4889 |
40.83%
|
1360 |
88.82%
|
|
|
|
10308 - Roads in the North | 9624 |
34.94%
|
1949 |
72.76%
|
|
|
|
10309 - Turn the Lights Off | 3228 |
60.25%
|
1382 |
94.07%
|
|
|
|
10310 - Dog and Gopher | 21492 |
29.18%
|
5160 |
84.07%
|
|
|
|
10311 - Goldbach and Euler | 27155 |
22.53%
|
3609 |
69.11%
|
|
|
|
10312 - Expression Bracketing | 2462 |
56.09%
|
1086 |
93.65%
|
|
|
|
10313 - Pay the Price | 12038 |
27.47%
|
2173 |
83.02%
|
|
|
|
10314 - Three Pigs | 4406 |
2.77%
|
277 |
13.00%
|
|
|
|
10315 - Poker Hands | 21204 |
28.74%
|
5303 |
81.60%
|
|
|
|
10316 - Airline Hub | 2852 |
24.16%
|
637 |
73.31%
|
|
|
|
10317 - Equating Equations | 2679 |
14.74%
|
526 |
36.50%
|
|
|
|
10318 - Security Panel | 3800 |
41.68%
|
822 |
89.29%
|
|
|
|
10319 - Manhattan | 3346 |
34.01%
|
917 |
80.92%
|
|
|
|
10320 - Cow Trouble! Help Please!! | 1200 |
32.42%
|
429 |
64.80%
|
|
|
|
10321 - Polygon Intersection | 1968 |
22.00%
|
394 |
65.23%
|
|
|
|
10322 - The Four in One Stadium | 630 |
23.65%
|
144 |
52.78%
|
|
|
|
10323 - Factorial! You Must be Kidding!!! | 45789 |
26.46%
|
10064 |
81.38%
|
|
|
|
10324 - Zeros and Ones | 47744 |
33.45%
|
11450 |
85.52%
|
|
|
|
10325 - The Lottery | 11493 |
37.89%
|
2739 |
76.31%
|
|
|
|
10326 - The Polynomial Equation | 3263 |
36.71%
|
968 |
85.54%
|
|
|
|
10327 - Flip Sort | 57573 |
42.57%
|
16273 |
91.44%
|
|
|
|
10328 - Coin Toss | 3000 |
39.73%
|
856 |
78.74%
|
|
|
|
10329 - Combinatorial Expression | 1519 |
27.98%
|
408 |
73.04%
|
|
|
|
10330 - Power Transmission | 13782 |
40.98%
|
2851 |
91.02%
|
|
|
|
10331 - The Flyover Construction | 1559 |
24.37%
|
372 |
66.40%
|
|
|
|
10332 - The Absent Minded Professor | 791 |
19.72%
|
212 |
43.40%
|
|
|
|
10333 - The Tower of ASCII | 1076 |
50.93%
|
483 |
83.44%
|
|
|
|
10334 - Ray Through Glasses | 12563 |
52.09%
|
5712 |
89.02%
|
|
|
|
10335 - Ray Inside a Polygon | 1434 |
15.34%
|
184 |
46.74%
|
|
|
|
10336 - Rank the Languages | 14717 |
58.96%
|
5779 |
95.64%
|
|
|
|
10337 - Flight Planner | 6899 |
50.91%
|
2829 |
92.86%
|
|
|
|
10338 - Mischievous Children | 15029 |
45.73%
|
5650 |
89.43%
|
|
|
|
10339 - Watching Watches | 2619 |
33.41%
|
718 |
75.63%
|
|
|
|
10340 - All in All | 101926 |
35.47%
|
20936 |
90.71%
|
|
|
|
10341 - Solve It | 54320 |
31.79%
|
8856 |
88.30%
|
|
|
|
10342 - Always Late | 4694 |
23.09%
|
911 |
70.03%
|
|
|
|
10343 - Base64 Decoding | 2565 |
15.59%
|
489 |
53.17%
|
|
|
|
10344 - 23 out of 5 | 34553 |
36.05%
|
6692 |
84.62%
|
|
|
|
10345 - Cricket/Football Goes Down | 714 |
35.99%
|
257 |
56.03%
|
|
|
|
10346 - Peter's Smokes | 59994 |
44.76%
|
20450 |
92.38%
|
|
|
|
10347 - Medians | 20934 |
31.89%
|
5204 |
89.47%
|
|
|
|
10348 - Submarines | 1129 |
35.70%
|
371 |
79.78%
|
|
|
|
10349 - Antenna Placement | 3741 |
46.70%
|
1331 |
82.34%
|
|
|
|
10350 - Liftless EME | 2032 |
57.48%
|
896 |
90.62%
|
|
|
|
10351 - Cutting Diamonds | 866 |
47.81%
|
411 |
87.59%
|
|
|
|
10352 - Count the eWords | 1875 |
19.68%
|
388 |
58.51%
|
|
|
|
10353 - Circles in Hexagon :-) | 577 |
36.22%
|
229 |
57.64%
|
|
|
|
10354 - Avoiding Your Boss | 5936 |
25.02%
|
1226 |
80.10%
|
|
|
|
10355 - Superman | 1245 |
28.35%
|
318 |
72.64%
|
|
|
|
10356 - Rough Roads | 4509 |
37.57%
|
1247 |
84.36%
|
|
|
|
10357 - Playball !!! | 858 |
57.11%
|
468 |
89.10%
|
|
|
|
10358 - Matrix | 983 |
18.31%
|
250 |
41.20%
|
|
|
|
10359 - Tiling | 4923 |
53.24%
|
2082 |
93.95%
|
|
|
|
10360 - Rat Attack | 17293 |
36.65%
|
4376 |
85.40%
|
|
|
|
10361 - Automatic Poetry | 14334 |
49.33%
|
5547 |
92.12%
|
|
|
|
10362 - Trains | 1383 |
16.85%
|
211 |
60.66%
|
|
|
|
10363 - Tic Tac Toe | 14462 |
29.88%
|
3837 |
80.48%
|
|
|
|
10364 - Square | 14944 |
26.79%
|
3043 |
65.49%
|
|
|
|
10365 - Blocks | 4391 |
57.96%
|
2097 |
93.37%
|
|
|
|
10366 - Faucet Flow | 2067 |
30.29%
|
483 |
70.19%
|
|
|
|
10367 - Equations | 1206 |
25.29%
|
334 |
73.95%
|
|
|
|
10368 - Euclid's Game | 7799 |
37.08%
|
2672 |
78.74%
|
|
|
|
10369 - Arctic Network | 21457 |
43.96%
|
5802 |
91.80%
|
|
|
|
10370 - Above Average | 50465 |
54.63%
|
20979 |
95.23%
|
|
|
|
10371 - Time Zones | 3660 |
34.59%
|
1035 |
86.96%
|
|
|
|
10372 - Leaps Tall Buildings (in a single bound) | 765 |
47.19%
|
303 |
78.55%
|
|
|
|
10373 - The Brick Stops Here | 1272 |
30.90%
|
281 |
75.09%
|
|
|
|
10374 - Election | 7420 |
27.47%
|
1814 |
76.63%
|
|
|
|
10375 - Choose and divide | 9944 |
49.77%
|
2552 |
84.09%
|
|
|
|
10376 - Snakes | 636 |
22.33%
|
184 |
63.04%
|
|
|
|
10377 - Maze Traversal | 8175 |
37.58%
|
2808 |
83.55%
|
|
|
|
10378 - Complex Numbers | 2930 |
16.86%
|
437 |
62.70%
|
|
|
|
10379 - Pit Stop Strategy | 370 |
36.22%
|
185 |
56.76%
|
|
|
|
10380 - Shogi Tournament | 1272 |
20.75%
|
210 |
66.67%
|
|
|
|
10381 - The Rock | 980 |
37.04%
|
229 |
72.93%
|
|
|
|
10382 - Watering Grass | 28903 |
22.22%
|
3844 |
66.13%
|
|
|
|
10383 - Queen vs Rook | 240 |
18.75%
|
58 |
46.55%
|
|
|
|
10384 - The Wall Pushers | 2156 |
32.70%
|
336 |
78.87%
|
|
|
|
10385 - Duathlon | 5108 |
30.58%
|
785 |
82.04%
|
|
|
|
10386 - Circles in Triangle | 837 |
50.54%
|
348 |
81.61%
|
|
|
|
10387 - Billiard | 2429 |
67.85%
|
1342 |
95.23%
|
|
|
|
10388 - Snap | 2431 |
23.78%
|
592 |
71.79%
|
|
|
|
10389 - Subway | 5033 |
29.80%
|
982 |
79.84%
|
|
|
|
10390 - Bean Counting | 1035 |
28.79%
|
376 |
72.61%
|
|
|
|
10391 - Compound Words | 23043 |
41.20%
|
3893 |
87.05%
|
|
|
|
10392 - Factoring Large Numbers | 10505 |
49.65%
|
3441 |
90.12%
|
|
|
|
10393 - The One-Handed Typist | 4688 |
32.94%
|
1320 |
84.39%
|
|
|
|
10394 - Twin Primes | 41856 |
39.80%
|
9577 |
88.00%
|
|
|
|
10395 - Titans in Danger | 472 |
24.36%
|
201 |
40.80%
|
|
|
|
10396 - Vampire Numbers | 1712 |
37.15%
|
578 |
72.66%
|
|
|
|
10397 - Connect the Campus | 19060 |
35.35%
|
3910 |
88.01%
|
|
|
|
10398 - The Golden Pentagon | 848 |
29.01%
|
221 |
80.54%
|
|
|
|
10399 - Optimus Prime | 443 |
43.57%
|
167 |
76.65%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |