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
Browse Problems
Title | Total Submissions / Solving % | Total Users / Solving % | ||||
1500 - Alice and Bob | 504 |
47.62%
|
190 |
82.63%
|
||
1501 - Construct the Great Wall | 41 |
58.54%
|
25 |
80.00%
|
||
1502 - GRE Words | 644 |
19.25%
|
85 |
61.18%
|
||
1503 - Ji-Tu Problem | 77 |
22.08%
|
26 |
53.85%
|
||
1504 - Genghis Khan the Conqueror | 767 |
27.77%
|
114 |
78.07%
|
||
1505 - Flood-it! | 852 |
45.31%
|
257 |
87.55%
|
||
1506 - Running relay | 126 |
25.40%
|
26 |
76.92%
|
||
1507 - Shadow | 11 |
27.27%
|
11 |
27.27%
|
||
1508 - Equipment | 485 |
51.75%
|
170 |
90.00%
|
||
1509 - Leet | 437 |
46.45%
|
121 |
93.39%
|
||
1510 - Neon Sign | 583 |
70.33%
|
260 |
91.92%
|
||
1511 - Soju | 279 |
58.06%
|
76 |
88.16%
|
||
1512 - ASCII Expression | 46 |
28.26%
|
19 |
52.63%
|
||
1513 - Movie collection | 2358 |
44.53%
|
547 |
83.00%
|
||
1514 - Piece it together | 525 |
37.52%
|
113 |
80.53%
|
||
1515 - Pool construction | 1598 |
46.25%
|
267 |
94.38%
|
||
1516 - Smoking gun | 230 |
33.48%
|
50 |
84.00%
|
||
1517 - Tracking RFIDs | 176 |
35.23%
|
45 |
75.56%
|
||
1518 - Train delays | 253 |
35.57%
|
52 |
76.92%
|
||
1519 - Dictionary Size | 482 |
32.57%
|
112 |
75.00%
|
||
1520 - Flights | 150 |
38.67%
|
39 |
76.92%
|
||
1521 - GCD Guessing Game | 742 |
43.94%
|
229 |
86.90%
|
||
1522 - Lights (extreme) | 20 |
55.00%
|
11 |
63.64%
|
||
1523 - Helicopter | 261 |
53.26%
|
102 |
95.10%
|
||
1524 - Hot or Cold? | 446 |
37.44%
|
144 |
81.94%
|
||
1525 - Falling Leaves | 435 |
58.16%
|
174 |
93.68%
|
||
1526 - Edge Detection | 92 |
50.00%
|
43 |
74.42%
|
||
1527 - Instruens Fabulam | 43 |
60.47%
|
21 |
80.95%
|
||
1528 - Reserve Bookshelf | 27 |
33.33%
|
14 |
64.29%
|
||
1529 - Clock | 250 |
28.40%
|
91 |
62.64%
|
||
1530 - Floating Point Numbers | 222 |
35.14%
|
66 |
71.21%
|
||
1531 - Problem Bee | 239 |
21.34%
|
42 |
80.95%
|
||
1532 - A Well-Formed Problem | 58 |
8.62%
|
18 |
27.78%
|
||
1533 - Moving Pegs | 709 |
56.70%
|
182 |
90.11%
|
||
1534 - Taekwondo | 240 |
42.08%
|
65 |
86.15%
|
||
1535 - Lost Lists | 113 |
20.35%
|
35 |
48.57%
|
||
1536 - Coins | 220 |
11.82%
|
48 |
27.08%
|
||
1537 - Picnic Planning | 1462 |
21.82%
|
309 |
67.96%
|
||
1538 - Poly-polygonal Numbers | 85 |
22.35%
|
28 |
46.43%
|
||
1539 - Rational Approximation | 53 |
20.75%
|
22 |
40.91%
|
||
1540 - Checker's Check | 23 |
30.43%
|
16 |
43.75%
|
||
1541 - To Bet or Not To Bet | 122 |
56.56%
|
56 |
76.79%
|
||
1542 - BSP Trees | 33 |
36.36%
|
18 |
66.67%
|
||
1543 - Telescope | 580 |
65.00%
|
147 |
95.92%
|
||
1544 - Simple Arithmetics | 244 |
36.89%
|
44 |
63.64%
|
||
1545 - The Bulk | 24 |
62.50%
|
14 |
64.29%
|
||
1546 - Complete the sequence! | 120 |
59.17%
|
57 |
82.46%
|
||
1547 - Direct Visibility | 40 |
32.50%
|
16 |
56.25%
|
||
1548 - The Game of Master-Mind | 75 |
54.67%
|
35 |
80.00%
|
||
1549 - Lattice Point | 207 |
53.62%
|
113 |
83.19%
|
||
1550 - Coin Exchange | 38 |
23.68%
|
18 |
50.00%
|
||
1551 - Cog-Wheels | 77 |
9.09%
|
15 |
40.00%
|
||
1552 - Interactive Permutation Guessing | 166 |
0.00%
|
50 |
0.00%
|
||
1553 - Buffer Manager | 37 |
45.95%
|
19 |
68.42%
|
||
1554 - Binary Search | 169 |
48.52%
|
58 |
91.38%
|
||
1555 - Garland | 838 |
44.99%
|
233 |
94.42%
|
||
1556 - Disk Tree | 1470 |
31.09%
|
308 |
78.25%
|
||
1557 - Calendar Game | 166 |
60.84%
|
83 |
85.54%
|
||
1558 - Number Game | 285 |
30.18%
|
71 |
80.28%
|
||
1559 - Nim | 248 |
56.45%
|
127 |
82.68%
|
||
1560 - Extended Lights Out | 484 |
51.45%
|
163 |
87.12%
|
||
1561 - Cycle Game | 82 |
67.07%
|
37 |
83.78%
|
||
1562 - Balanced Chemical Equations | 47 |
25.53%
|
19 |
47.37%
|
||
1563 - SETI | 157 |
46.50%
|
78 |
71.79%
|
||
1564 - Widget Factory | 421 |
46.79%
|
106 |
90.57%
|
||
1565 - Stake Your Claim | 26 |
69.23%
|
17 |
58.82%
|
||
1566 - John | 649 |
73.04%
|
372 |
97.04%
|
||
1567 - A simple stone game | 99 |
56.57%
|
59 |
77.97%
|
||
1568 - Domino Puzzle | 46 |
34.78%
|
19 |
63.16%
|
||
1569 - Multiple | 385 |
26.75%
|
84 |
72.62%
|
||
1570 - Accelerator | 83 |
0.00%
|
13 |
0.00%
|
||
1571 - How I Mathematician Wonder What You Are! | 211 |
62.09%
|
96 |
90.62%
|
||
1572 - Self-Assembly | 3865 |
45.02%
|
655 |
85.50%
|
||
1573 - Hey, Better Bettor | 135 |
45.93%
|
52 |
63.46%
|
||
1574 - Surely You Congest | 373 |
30.03%
|
97 |
76.29%
|
||
1575 - Factors | 1293 |
39.06%
|
222 |
81.98%
|
||
1576 - Harvard | 106 |
49.06%
|
32 |
53.12%
|
||
1577 - Low Power | 1137 |
46.00%
|
270 |
80.37%
|
||
1578 - Map Tiles | 70 |
18.57%
|
20 |
50.00%
|
||
1579 - Matryoshka | 688 |
55.52%
|
224 |
83.04%
|
||
1580 - Pirate Chest | 443 |
50.56%
|
131 |
80.92%
|
||
1581 - Pollution Solution | 276 |
34.42%
|
90 |
67.78%
|
||
1582 - Up a Tree | 68 |
63.24%
|
28 |
53.57%
|
||
1583 - Digit Generator | 25779 |
49.05%
|
4386 |
93.87%
|
||
1584 - Circular Sequence | 17745 |
62.27%
|
3774 |
95.10%
|
||
1585 - Score | 53820 |
52.45%
|
13195 |
92.13%
|
||
1586 - Molar mass | 32643 |
52.66%
|
7228 |
92.81%
|
||
1587 - Box | 24045 |
29.12%
|
2622 |
83.49%
|
||
1588 - Kickdown | 17039 |
35.87%
|
2158 |
89.20%
|
||
1589 - Xiangqi | 18978 |
20.05%
|
1569 |
74.31%
|
||
1590 - IP Networks | 7885 |
35.19%
|
1080 |
88.15%
|
||
1591 - Data Mining | 1933 |
50.75%
|
392 |
93.37%
|
||
1592 - Database | 12640 |
37.36%
|
1418 |
88.01%
|
||
1593 - Alignment of Code | 12110 |
38.03%
|
1602 |
87.70%
|
||
1594 - Ducci Sequence | 10787 |
60.29%
|
2081 |
94.67%
|
||
1595 - Symmetry | 10944 |
44.83%
|
1576 |
90.42%
|
||
1596 - Bug Hunt | 3115 |
47.77%
|
548 |
89.05%
|
||
1597 - Searching the Web | 5505 |
26.03%
|
516 |
71.90%
|
||
1598 - Exchange | 1996 |
29.91%
|
271 |
80.07%
|
||
1599 - Ideal Path | 15045 |
21.69%
|
1139 |
71.12%
|
<< Start < Prev 1 Next > End >> | ||
Display # | Results 1 - 100 of 100 |