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 % | ||||
|
1600 - Patrol Robot | 7936 |
42.23%
|
1124 |
90.39%
|
|
|
|
1601 - The Morning after Halloween | 6805 |
44.44%
|
712 |
86.38%
|
|
|
|
1602 - Lattice Animals | 1646 |
62.21%
|
324 |
89.51%
|
|
|
|
1603 - Square Destroyer | 2136 |
54.40%
|
536 |
90.49%
|
|
|
|
1604 - Cubic Eight-Puzzle | 980 |
53.98%
|
212 |
86.79%
|
|
|
1605 - Building for UN | 4724 |
50.83%
|
874 |
95.19%
|
|
|
|
1606 - Amphiphilic Carbon Molecules | 2086 |
55.37%
|
396 |
91.41%
|
|
|
|
1607 - Gates | 1645 |
37.87%
|
253 |
91.70%
|
|
|
|
1608 - Non-boring sequences | 7475 |
35.33%
|
1128 |
86.17%
|
|
|
|
1609 - Foul Play | 1230 |
46.59%
|
262 |
87.40%
|
|
|
|
1610 - Party Games | 6793 |
30.99%
|
942 |
83.65%
|
|
|
|
1611 - Crane | 1808 |
51.83%
|
339 |
93.22%
|
|
|
|
1612 - Guess | 2678 |
30.99%
|
321 |
86.29%
|
|
|
|
1613 - K-Graph Oddity | 2092 |
33.94%
|
268 |
87.31%
|
|
|
|
1614 - Hell on the Markets | 2797 |
40.08%
|
405 |
89.38%
|
|
|
|
1615 - Highway | 2605 |
43.49%
|
394 |
91.62%
|
|
|
|
1616 - Caravan Robbers | 2290 |
33.23%
|
258 |
85.27%
|
|
|
|
1617 - Laptop | 1390 |
47.48%
|
251 |
90.04%
|
|
|
|
1618 - Weak Key | 1293 |
48.11%
|
231 |
92.21%
|
|
|
|
1619 - Feel Good | 8262 |
19.60%
|
819 |
74.85%
|
|
|
|
1620 - Lazy Susan | 752 |
62.50%
|
197 |
89.34%
|
|
|
|
1621 - Jumping Around | 1097 |
3.56%
|
136 |
18.38%
|
|
|
|
1622 - Robot | 772 |
32.51%
|
119 |
78.99%
|
|
|
|
1623 - Enter The Dragon | 1723 |
41.96%
|
259 |
84.94%
|
|
|
|
1624 - Knots | 410 |
39.51%
|
89 |
85.39%
|
|
|
|
1625 - Color Length | 5178 |
52.34%
|
822 |
92.21%
|
|
|
|
1626 - Brackets sequence | 13862 |
24.06%
|
1190 |
77.90%
|
|
|
|
1627 - Team them up! | 3383 |
30.62%
|
549 |
80.15%
|
|
|
|
1628 - Pizza Delivery | 578 |
55.88%
|
184 |
89.13%
|
|
|
|
1629 - Cake slicing | 3865 |
45.46%
|
651 |
93.55%
|
|
|
|
1630 - Folding | 2720 |
55.92%
|
800 |
86.75%
|
|
|
|
1631 - Locker | 1212 |
56.11%
|
258 |
87.98%
|
|
|
|
1632 - Alibaba | 3150 |
38.38%
|
415 |
86.99%
|
|
|
|
1633 - Dyslexic Gollum | 1193 |
41.83%
|
218 |
83.49%
|
|
|
|
1634 - The Picnic | 252 |
60.32%
|
72 |
87.50%
|
|
|
|
1635 - Irrelevant Elements | 7657 |
27.22%
|
626 |
81.95%
|
|
|
|
1636 - Headshot | 4264 |
55.63%
|
944 |
94.81%
|
|
|
|
1637 - Double Patience | 1645 |
58.05%
|
306 |
90.85%
|
|
|
|
1638 - Pole Arrangement | 1960 |
74.18%
|
553 |
97.11%
|
|
|
|
1639 - Candy | 2923 |
40.40%
|
377 |
89.39%
|
|
|
|
1640 - The Counting Problem | 6029 |
41.83%
|
1579 |
86.19%
|
|
|
|
1641 - ASCII Area | 2970 |
48.72%
|
782 |
89.90%
|
|
|
|
1642 - Magical GCD | 2916 |
43.14%
|
651 |
86.94%
|
|
|
|
1643 - Angle and Squares | 672 |
56.25%
|
149 |
94.63%
|
|
|
|
1644 - Prime Gap | 7364 |
65.28%
|
1873 |
96.05%
|
|
|
|
1645 - Count | 1126 |
66.16%
|
384 |
80.99%
|
|
|
|
1646 - Edge Case | 884 |
67.65%
|
258 |
94.57%
|
|
|
|
1647 - Computer Transformation | 1323 |
47.24%
|
287 |
90.94%
|
|
|
|
1648 - Business Center | 1234 |
42.95%
|
246 |
87.40%
|
|
|
|
1649 - Binomial coefficients | 1208 |
39.74%
|
199 |
82.91%
|
|
|
|
1650 - Number String | 890 |
55.73%
|
282 |
90.43%
|
|
|
|
1651 - Binary Operation | 129 |
38.76%
|
41 |
73.17%
|
|
|
|
1652 - Fibonacci System | 164 |
47.56%
|
58 |
81.03%
|
|
|
|
1653 - Yet Another Multiple Problem | 540 |
39.81%
|
96 |
89.58%
|
|
|
|
1654 - Pairs of integers | 286 |
35.31%
|
81 |
75.31%
|
|
|
|
1655 - Exam | 431 |
39.21%
|
145 |
74.48%
|
|
|
|
1656 - Exponential Towers | 90 |
68.89%
|
43 |
81.40%
|
|
|
|
1657 - Game | 251 |
36.65%
|
61 |
80.33%
|
|
|
|
1658 - Admiral | 2811 |
44.54%
|
384 |
92.97%
|
|
|
|
1659 - Help Little Laura | 890 |
44.16%
|
155 |
90.32%
|
|
|
|
1660 - Cable TV Network | 2400 |
52.54%
|
716 |
94.27%
|
|
|
|
1661 - Equation | 537 |
28.49%
|
103 |
74.76%
|
|
|
|
1662 - Brackets Removal | 391 |
52.17%
|
84 |
86.90%
|
|
|
|
1663 - Purifying Machine | 1489 |
36.40%
|
223 |
87.89%
|
|
|
|
1664 - Conquer a New Region | 1398 |
42.70%
|
236 |
89.83%
|
|
|
|
1665 - Islands | 2020 |
34.50%
|
269 |
83.27%
|
|
|
|
1666 - Walk | 254 |
43.31%
|
65 |
78.46%
|
|
|
|
1667 - Network Mess | 314 |
51.27%
|
70 |
91.43%
|
|
|
|
1668 - Let's Go Green | 321 |
63.24%
|
98 |
90.82%
|
|
|
|
1669 - Holiday's Accommodatio | 368 |
57.07%
|
102 |
91.18%
|
|
|
|
1670 - Kingdom Roadmap | 587 |
3.92%
|
83 |
21.69%
|
|
|
|
1671 - History of Languages | 219 |
51.14%
|
70 |
87.14%
|
|
|
|
1672 - Disjoint Regular Expressions | 226 |
13.72%
|
60 |
13.33%
|
|
|
|
1673 - str2int | 492 |
36.38%
|
119 |
85.71%
|
|
|
|
1674 - Lightning Energy Report | 1183 |
45.14%
|
229 |
89.08%
|
|
|
|
1675 - Kingdom Reunion | 70 |
22.86%
|
25 |
44.00%
|
|
|
|
1676 - GRE Words Revenge | 1200 |
48.92%
|
112 |
81.25%
|
|
|
|
1677 - Cycling | 34 |
26.47%
|
20 |
45.00%
|
|
|
|
1678 - Huzita Axiom 6 | 50 |
18.00%
|
20 |
25.00%
|
|
|
|
1679 - Easy Geometry | 144 |
4.86%
|
45 |
13.33%
|
|
|
|
1680 - Journey | 64 |
21.88%
|
25 |
56.00%
|
|
|
|
1681 - Dictionary | 111 |
2.70%
|
32 |
9.38%
|
|
|
|
1682 - Exclusive Access | 32 |
46.88%
|
20 |
70.00%
|
|
|
|
1683 - In case of failure | 490 |
30.00%
|
94 |
80.85%
|
|
|
|
1684 - Escape Plan | 77 |
32.47%
|
33 |
63.64%
|
|
|
|
1685 - Enjoyable Commutation | 65 |
36.92%
|
25 |
64.00%
|
|
|
|
1686 - Tiling | 48 |
52.08%
|
31 |
70.97%
|
|
|
|
1687 - Slicing Tree | 50 |
48.00%
|
24 |
70.83%
|
|
|
|
1688 - Roof | 25 |
52.00%
|
14 |
57.14%
|
|
|
|
1689 - International Event | 19 |
57.89%
|
13 |
69.23%
|
|
|
|
1690 - Find a Minor | 41 |
24.39%
|
23 |
39.13%
|
|
|
|
1691 - Hip To Be Square | 62 |
27.42%
|
25 |
52.00%
|
|
|
|
1692 - Labyrinth of the Minotaur | 103 |
8.74%
|
42 |
19.05%
|
|
|
|
1693 - XAR | 29 |
41.38%
|
17 |
47.06%
|
|
|
|
1694 - History course | 50 |
34.00%
|
26 |
57.69%
|
|
|
|
1695 - Escape | 90 |
31.11%
|
35 |
57.14%
|
|
|
|
1696 - Traveling Spiders | 180 |
7.78%
|
27 |
44.44%
|
|
|
|
1697 - Baggage | 671 |
31.59%
|
217 |
79.26%
|
|
|
|
1698 - Buffed Buffet | 141 |
16.31%
|
48 |
35.42%
|
|
|
|
1699 - Crane Balancing | 905 |
25.08%
|
74 |
63.51%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |