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 | 56092 |
67.12%
|
30813 |
96.95%
|
|
|
|
10301 - Rings and Glue | 9506 |
26.00%
|
2109 |
80.37%
|
|
|
|
10302 - Summation of Polynomials | 28944 |
45.86%
|
11369 |
92.33%
|
|
|
|
10303 - How Many Trees? | 7414 |
40.71%
|
2752 |
79.36%
|
|
|
|
10304 - Optimal Binary Search Tree | 9014 |
52.17%
|
2353 |
88.57%
|
|
|
10305 - Ordering Tasks | 85735 |
43.42%
|
17472 |
90.85%
|
|
|
|
10306 - e-Coins | 8045 |
57.49%
|
3217 |
95.46%
|
|
|
|
10307 - Killing Aliens in Borg Maze | 4888 |
40.81%
|
1359 |
88.82%
|
|
|
|
10308 - Roads in the North | 9532 |
34.92%
|
1939 |
72.61%
|
|
|
|
10309 - Turn the Lights Off | 3226 |
60.23%
|
1381 |
94.06%
|
|
|
|
10310 - Dog and Gopher | 21474 |
29.17%
|
5156 |
84.06%
|
|
|
|
10311 - Goldbach and Euler | 27150 |
22.52%
|
3608 |
69.10%
|
|
|
|
10312 - Expression Bracketing | 2460 |
56.06%
|
1085 |
93.64%
|
|
|
|
10313 - Pay the Price | 12031 |
27.45%
|
2173 |
83.02%
|
|
|
|
10314 - Three Pigs | 4406 |
2.77%
|
277 |
13.00%
|
|
|
|
10315 - Poker Hands | 21166 |
28.72%
|
5291 |
81.61%
|
|
|
|
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 | 3340 |
34.07%
|
916 |
81.00%
|
|
|
|
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!!! | 45777 |
26.46%
|
10062 |
81.38%
|
|
|
|
10324 - Zeros and Ones | 47702 |
33.43%
|
11443 |
85.51%
|
|
|
|
10325 - The Lottery | 11425 |
37.86%
|
2725 |
76.18%
|
|
|
|
10326 - The Polynomial Equation | 3249 |
36.75%
|
967 |
85.52%
|
|
|
|
10327 - Flip Sort | 57515 |
42.55%
|
16264 |
91.44%
|
|
|
|
10328 - Coin Toss | 2998 |
39.69%
|
855 |
78.71%
|
|
|
|
10329 - Combinatorial Expression | 1519 |
27.98%
|
408 |
73.04%
|
|
|
|
10330 - Power Transmission | 13743 |
40.90%
|
2841 |
90.99%
|
|
|
|
10331 - The Flyover Construction | 1559 |
24.37%
|
372 |
66.40%
|
|
|
|
10332 - The Absent Minded Professor | 789 |
19.77%
|
211 |
43.60%
|
|
|
|
10333 - The Tower of ASCII | 1076 |
50.93%
|
483 |
83.44%
|
|
|
|
10334 - Ray Through Glasses | 12561 |
52.08%
|
5711 |
89.02%
|
|
|
|
10335 - Ray Inside a Polygon | 1434 |
15.34%
|
184 |
46.74%
|
|
|
|
10336 - Rank the Languages | 14692 |
58.96%
|
5770 |
95.63%
|
|
|
|
10337 - Flight Planner | 6898 |
50.90%
|
2829 |
92.86%
|
|
|
|
10338 - Mischievous Children | 15025 |
45.73%
|
5648 |
89.43%
|
|
|
|
10339 - Watching Watches | 2618 |
33.38%
|
718 |
75.63%
|
|
|
|
10340 - All in All | 101698 |
35.45%
|
20918 |
90.71%
|
|
|
|
10341 - Solve It | 54279 |
31.79%
|
8853 |
88.30%
|
|
|
|
10342 - Always Late | 4680 |
22.99%
|
909 |
69.97%
|
|
|
|
10343 - Base64 Decoding | 2565 |
15.59%
|
489 |
53.17%
|
|
|
|
10344 - 23 out of 5 | 34422 |
36.05%
|
6679 |
84.61%
|
|
|
|
10345 - Cricket/Football Goes Down | 712 |
35.81%
|
256 |
55.86%
|
|
|
|
10346 - Peter's Smokes | 59946 |
44.77%
|
20446 |
92.37%
|
|
|
|
10347 - Medians | 20901 |
31.91%
|
5202 |
89.47%
|
|
|
|
10348 - Submarines | 1129 |
35.70%
|
371 |
79.78%
|
|
|
|
10349 - Antenna Placement | 3721 |
46.52%
|
1329 |
82.32%
|
|
|
|
10350 - Liftless EME | 2032 |
57.48%
|
896 |
90.62%
|
|
|
|
10351 - Cutting Diamonds | 866 |
47.81%
|
411 |
87.59%
|
|
|
|
10352 - Count the eWords | 1870 |
19.63%
|
388 |
58.51%
|
|
|
|
10353 - Circles in Hexagon :-) | 574 |
35.89%
|
228 |
56.58%
|
|
|
|
10354 - Avoiding Your Boss | 5926 |
25.01%
|
1224 |
80.15%
|
|
|
|
10355 - Superman | 1245 |
28.35%
|
318 |
72.64%
|
|
|
|
10356 - Rough Roads | 4509 |
37.57%
|
1247 |
84.36%
|
|
|
|
10357 - Playball !!! | 852 |
57.51%
|
468 |
89.10%
|
|
|
|
10358 - Matrix | 983 |
18.31%
|
250 |
41.20%
|
|
|
|
10359 - Tiling | 4914 |
53.19%
|
2080 |
93.94%
|
|
|
|
10360 - Rat Attack | 17290 |
36.64%
|
4374 |
85.39%
|
|
|
|
10361 - Automatic Poetry | 14331 |
49.32%
|
5546 |
92.12%
|
|
|
|
10362 - Trains | 1370 |
16.86%
|
205 |
61.46%
|
|
|
|
10363 - Tic Tac Toe | 14447 |
29.88%
|
3832 |
80.48%
|
|
|
|
10364 - Square | 14897 |
26.79%
|
3036 |
65.51%
|
|
|
|
10365 - Blocks | 4381 |
57.98%
|
2095 |
93.37%
|
|
|
|
10366 - Faucet Flow | 2067 |
30.29%
|
483 |
70.19%
|
|
|
|
10367 - Equations | 1205 |
25.31%
|
333 |
74.17%
|
|
|
|
10368 - Euclid's Game | 7791 |
37.08%
|
2669 |
78.72%
|
|
|
|
10369 - Arctic Network | 21435 |
43.93%
|
5797 |
91.79%
|
|
|
|
10370 - Above Average | 50414 |
54.63%
|
20975 |
95.23%
|
|
|
|
10371 - Time Zones | 3658 |
34.55%
|
1033 |
86.93%
|
|
|
|
10372 - Leaps Tall Buildings (in a single bound) | 764 |
47.12%
|
302 |
78.48%
|
|
|
|
10373 - The Brick Stops Here | 1272 |
30.90%
|
281 |
75.09%
|
|
|
|
10374 - Election | 7417 |
27.46%
|
1813 |
76.61%
|
|
|
|
10375 - Choose and divide | 9934 |
49.76%
|
2550 |
84.08%
|
|
|
|
10376 - Snakes | 636 |
22.33%
|
184 |
63.04%
|
|
|
|
10377 - Maze Traversal | 8119 |
37.54%
|
2806 |
83.54%
|
|
|
|
10378 - Complex Numbers | 2930 |
16.86%
|
437 |
62.70%
|
|
|
|
10379 - Pit Stop Strategy | 370 |
36.22%
|
185 |
56.76%
|
|
|
|
10380 - Shogi Tournament | 1266 |
20.54%
|
209 |
66.51%
|
|
|
|
10381 - The Rock | 978 |
36.91%
|
228 |
72.81%
|
|
|
|
10382 - Watering Grass | 28877 |
22.20%
|
3837 |
66.09%
|
|
|
|
10383 - Queen vs Rook | 240 |
18.75%
|
58 |
46.55%
|
|
|
|
10384 - The Wall Pushers | 2153 |
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 | 2428 |
67.83%
|
1342 |
95.23%
|
|
|
|
10388 - Snap | 2405 |
23.83%
|
585 |
71.97%
|
|
|
|
10389 - Subway | 5030 |
29.76%
|
981 |
79.82%
|
|
|
|
10390 - Bean Counting | 1035 |
28.79%
|
376 |
72.61%
|
|
|
|
10391 - Compound Words | 22971 |
41.21%
|
3882 |
87.09%
|
|
|
|
10392 - Factoring Large Numbers | 10500 |
49.64%
|
3441 |
90.12%
|
|
|
|
10393 - The One-Handed Typist | 4686 |
32.91%
|
1319 |
84.38%
|
|
|
|
10394 - Twin Primes | 41704 |
39.81%
|
9559 |
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 | 19048 |
35.31%
|
3907 |
88.00%
|
|
|
|
10398 - The Golden Pentagon | 848 |
29.01%
|
221 |
80.54%
|
|
|
|
10399 - Optimus Prime | 440 |
43.41%
|
165 |
76.97%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |