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 % | ||||
|
300 - Maya Calendar | 13488 |
35.11%
|
3556 |
82.87%
|
|
|
|
301 - Transportation | 8442 |
34.41%
|
2281 |
78.83%
|
|
|
|
302 - John's trip | 12621 |
24.05%
|
1908 |
67.03%
|
|
|
|
303 - Pipe | 1854 |
33.17%
|
516 |
78.49%
|
|
|
|
304 - Department | 1009 |
7.33%
|
233 |
18.88%
|
|
|
|
305 - Joseph | 20312 |
49.22%
|
6857 |
88.67%
|
|
|
|
306 - Cipher | 11515 |
22.28%
|
2482 |
63.34%
|
|
|
|
307 - Sticks | 31034 |
22.01%
|
5182 |
58.72%
|
|
|
|
308 - Tin Cutter | 1746 |
34.25%
|
513 |
75.83%
|
|
|
|
309 - FORCAL | 792 |
41.67%
|
308 |
76.95%
|
|
|
|
310 - L--system | 3224 |
18.89%
|
557 |
45.78%
|
|
|
|
311 - Packets | 11500 |
36.46%
|
3390 |
81.80%
|
|
|
312 - Crosswords (II) | 3018 |
20.08%
|
709 |
45.98%
|
|
|
|
313 - Intervals | 2482 |
31.43%
|
686 |
79.45%
|
|
|
|
314 - Robot | 9100 |
31.14%
|
2203 |
76.31%
|
|
|
|
315 - Network | 38123 |
43.93%
|
8562 |
89.37%
|
|
|
|
316 - Stars | 1230 |
12.20%
|
219 |
51.14%
|
|
|
|
317 - Hexagon | 801 |
31.46%
|
300 |
52.33%
|
|
|
|
318 - Domino Effect | 9815 |
28.33%
|
1808 |
78.76%
|
|
|
|
319 - Pendulum | 756 |
24.34%
|
195 |
73.33%
|
|
|
|
320 - Border | 4811 |
43.57%
|
2133 |
80.97%
|
|
|
|
321 - The New Villa | 7455 |
32.17%
|
1450 |
81.17%
|
|
|
|
322 - Ships | 739 |
17.86%
|
191 |
35.60%
|
|
|
|
323 - Jury Compromise | 6402 |
24.34%
|
1234 |
62.97%
|
|
|
|
324 - Factorial Frequencies | 17284 |
57.31%
|
7812 |
90.19%
|
|
|
|
325 - Identifying Legal Pascal Real Constants | 9101 |
32.14%
|
2175 |
79.45%
|
|
|
|
326 - Extrapolation Using a Difference Table | 3170 |
62.87%
|
1813 |
90.35%
|
|
|
|
327 - Evaluating Simple C Expressions | 7806 |
35.65%
|
1761 |
76.60%
|
|
|
|
328 - The Finite State Text Processing Machine | 908 |
28.85%
|
293 |
68.94%
|
|
|
|
329 - PostScript Emulation | 967 |
17.48%
|
232 |
21.55%
|
|
|
|
330 - Inventory Maintenance | 2548 |
11.22%
|
563 |
31.26%
|
|
|
|
331 - Mapping the Swaps | 4398 |
56.53%
|
2003 |
87.42%
|
|
|
|
332 - Rational Numbers from Repeating Fractions | 15204 |
24.17%
|
2599 |
71.87%
|
|
|
|
333 - Recognizing Good ISBNs | 21487 |
16.79%
|
3396 |
52.74%
|
|
|
|
334 - Identifying Concurrent Events | 3706 |
28.12%
|
1215 |
68.97%
|
|
|
|
335 - Processing MX Records | 1853 |
30.55%
|
429 |
76.22%
|
|
|
|
336 - A Node Too Far | 48630 |
31.23%
|
9849 |
83.78%
|
|
|
|
337 - Interpreting Control Sequences | 3858 |
58.63%
|
1674 |
91.46%
|
|
|
|
338 - Long Multiplication | 6825 |
11.38%
|
1465 |
34.13%
|
|
|
|
339 - SameGame Simulation | 2327 |
31.67%
|
793 |
61.41%
|
|
|
|
340 - Master-Mind Hints | 33765 |
44.99%
|
7779 |
90.24%
|
|
|
|
341 - Non-Stop Travel | 7891 |
51.59%
|
2915 |
91.39%
|
|
|
|
342 - HTML Syntax Checking | 1929 |
12.60%
|
299 |
37.12%
|
|
|
|
343 - What Base Is This? | 16915 |
33.60%
|
4396 |
81.80%
|
|
|
|
344 - Roman Digititis | 14529 |
60.80%
|
7678 |
92.89%
|
|
|
|
345 - It's Ir-Resist-Able! | 1950 |
28.05%
|
588 |
70.24%
|
|
|
|
346 - Getting Chorded | 2116 |
45.27%
|
748 |
72.73%
|
|
|
|
347 - Run | 6182 |
32.14%
|
2605 |
56.74%
|
|
|
|
348 - Optimal Array Multiplication Sequence | 19396 |
43.75%
|
5231 |
89.07%
|
|
|
|
349 - Transferable Voting (II) | 1624 |
38.24%
|
666 |
74.17%
|
|
|
|
350 - Pseudo-Random Numbers | 21374 |
55.01%
|
8582 |
91.04%
|
|
|
|
351 - "Cheapest" Scores | 171 |
31.58%
|
49 |
42.86%
|
|
|
|
352 - The Seasonal War | 33679 |
53.54%
|
11321 |
92.85%
|
|
|
|
353 - Pesky Palindromes | 12697 |
47.89%
|
4417 |
88.79%
|
|
|
|
354 - Crazy Calculator | 458 |
15.50%
|
97 |
31.96%
|
|
|
|
355 - The Bases Are Loaded | 19815 |
25.67%
|
4209 |
79.07%
|
|
|
|
356 - Square Pegs And Round Holes | 11154 |
32.00%
|
3309 |
64.34%
|
|
|
|
357 - Let Me Count The Ways | 61214 |
35.17%
|
14621 |
82.58%
|
|
|
|
358 - Don't Have A Cow | 3639 |
38.31%
|
611 |
54.17%
|
|
|
|
359 - Sex Assignments And Breeding Experiments | 1166 |
16.98%
|
144 |
51.39%
|
|
|
|
360 - Don't Get Hives From This One! | 146 |
63.70%
|
48 |
56.25%
|
|
|
|
361 - Cops and Robbers | 8600 |
11.60%
|
1092 |
42.77%
|
|
|
|
362 - 18,000 Seconds Remaining | 9011 |
24.27%
|
1887 |
75.15%
|
|
|
|
363 - Approximate Matches | 113 |
45.13%
|
52 |
53.85%
|
|
|
|
364 - Constitutional Computing | 269 |
10.04%
|
46 |
19.57%
|
|
|
|
365 - Welfare Reform | 1012 |
14.03%
|
185 |
47.57%
|
|
|
|
366 - Cutting Up | 793 |
37.83%
|
352 |
63.92%
|
|
|
|
367 - Halting Factor Replacement Systems | 666 |
19.22%
|
164 |
44.51%
|
|
|
|
368 - Indexing Web Pages | 154 |
19.48%
|
54 |
44.44%
|
|
|
|
369 - Combinations | 50591 |
45.03%
|
16375 |
90.09%
|
|
|
|
370 - Bingo | 923 |
17.77%
|
203 |
49.75%
|
|
|
|
371 - Ackermann Functions | 55666 |
25.00%
|
10080 |
77.81%
|
|
|
|
372 - WhatFix Notation | 392 |
45.66%
|
181 |
61.88%
|
|
|
|
373 - Romulan Spelling | 1583 |
32.03%
|
321 |
52.65%
|
|
|
|
374 - Big Mod | 73562 |
47.34%
|
22798 |
89.52%
|
|
|
|
375 - Inscribed Circles and Isosceles Triangles | 6617 |
30.68%
|
1442 |
77.88%
|
|
|
|
376 - More Triangles ... THE AMBIGUOUS CASE | 1454 |
14.24%
|
290 |
42.76%
|
|
|
|
377 - Cowculations | 3336 |
60.52%
|
1897 |
90.09%
|
|
|
|
378 - Intersecting Lines | 20650 |
42.06%
|
5642 |
84.65%
|
|
|
|
379 - Hi-Q | 1388 |
65.35%
|
895 |
87.93%
|
|
|
|
380 - Call Forwarding | 3394 |
47.55%
|
1247 |
87.09%
|
|
|
|
381 - Making the Grade | 1508 |
54.38%
|
860 |
80.70%
|
|
|
|
382 - Perfection | 69791 |
35.08%
|
20366 |
86.49%
|
|
|
|
383 - Shipping Routes | 9780 |
39.23%
|
3543 |
82.16%
|
|
|
|
384 - Slurpys | 6320 |
47.94%
|
2051 |
83.86%
|
|
|
|
385 - DNA Translation | 1692 |
34.34%
|
518 |
72.20%
|
|
|
|
386 - Perfect Cubes | 19000 |
48.59%
|
7026 |
88.39%
|
|
|
|
387 - A Puzzling Problem | 2887 |
30.03%
|
732 |
61.07%
|
|
|
|
388 - Galactic Import | 1603 |
60.82%
|
877 |
87.80%
|
|
|
|
389 - Basically Speaking | 26709 |
29.30%
|
6248 |
77.14%
|
|
|
|
390 - Letter Sequence Analysis | 1012 |
25.69%
|
406 |
48.28%
|
|
|
|
391 - Mark-up | 4737 |
29.89%
|
1178 |
75.64%
|
|
|
|
392 - Polynomial Showdown | 20463 |
30.11%
|
5841 |
76.15%
|
|
|
|
393 - The Doors | 1923 |
44.20%
|
786 |
83.21%
|
|
|
|
394 - Mapmaker | 6793 |
59.37%
|
3431 |
93.12%
|
|
|
|
395 - Board Silly | 1190 |
30.00%
|
564 |
56.91%
|
|
|
|
396 - Top Dog | 583 |
17.84%
|
174 |
25.29%
|
|
|
|
397 - Equation Elation | 3359 |
47.54%
|
1197 |
86.80%
|
|
|
|
398 - 18-Wheeler Caravans (aka Semigroups) | 1011 |
13.95%
|
408 |
29.41%
|
|
|
|
399 - Another Puzzling Problem | 1132 |
29.77%
|
451 |
51.88%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |