Our Patreons
Diamond Sponsors
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Reinardus Pradhitya
Gold Sponsors
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Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
|
1500 - Alice and Bob | 646 |
45.05%
|
248 |
80.24%
|
|
|
|
1501 - Construct the Great Wall | 50 |
52.00%
|
31 |
70.97%
|
|
|
|
1502 - GRE Words | 1023 |
17.01%
|
112 |
59.82%
|
|
|
|
1503 - Ji-Tu Problem | 80 |
21.25%
|
29 |
48.28%
|
|
|
|
1504 - Genghis Khan the Conqueror | 795 |
27.55%
|
119 |
77.31%
|
|
|
|
1505 - Flood-it! | 1027 |
46.35%
|
320 |
86.56%
|
|
|
|
1506 - Running relay | 132 |
28.03%
|
28 |
75.00%
|
|
|
|
1507 - Shadow | 12 |
25.00%
|
12 |
25.00%
|
|
|
|
1508 - Equipment | 518 |
49.81%
|
178 |
87.64%
|
|
|
|
1509 - Leet | 443 |
46.73%
|
125 |
92.80%
|
|
|
|
1510 - Neon Sign | 614 |
69.38%
|
272 |
91.18%
|
|
|
|
1511 - Soju | 293 |
57.68%
|
82 |
85.37%
|
|
|
|
1512 - ASCII Expression | 71 |
28.17%
|
23 |
56.52%
|
|
|
|
1513 - Movie collection | 2775 |
43.68%
|
598 |
81.77%
|
|
|
|
1514 - Piece it together | 585 |
37.44%
|
123 |
79.67%
|
|
|
|
1515 - Pool construction | 1687 |
46.95%
|
293 |
94.54%
|
|
|
|
1516 - Smoking gun | 262 |
30.15%
|
53 |
81.13%
|
|
|
|
1517 - Tracking RFIDs | 182 |
36.81%
|
48 |
75.00%
|
|
|
|
1518 - Train delays | 282 |
35.82%
|
55 |
74.55%
|
|
|
|
1519 - Dictionary Size | 510 |
33.53%
|
118 |
75.42%
|
|
|
|
1520 - Flights | 155 |
39.35%
|
42 |
76.19%
|
|
|
|
1521 - GCD Guessing Game | 790 |
44.30%
|
248 |
85.89%
|
|
|
|
1522 - Lights (extreme) | 21 |
52.38%
|
12 |
58.33%
|
|
|
|
1523 - Helicopter | 266 |
53.38%
|
105 |
94.29%
|
|
|
|
1524 - Hot or Cold? | 464 |
39.01%
|
154 |
82.47%
|
|
|
|
1525 - Falling Leaves | 745 |
59.06%
|
197 |
92.89%
|
|
|
|
1526 - Edge Detection | 111 |
52.25%
|
49 |
73.47%
|
|
|
|
1527 - Instruens Fabulam | 47 |
61.70%
|
25 |
80.00%
|
|
|
|
1528 - Reserve Bookshelf | 53 |
26.42%
|
25 |
56.00%
|
|
|
|
1529 - Clock | 343 |
28.28%
|
117 |
60.68%
|
|
|
|
1530 - Floating Point Numbers | 265 |
32.83%
|
73 |
72.60%
|
|
|
|
1531 - Problem Bee | 253 |
22.53%
|
46 |
80.43%
|
|
|
|
1532 - A Well-Formed Problem | 92 |
5.43%
|
29 |
17.24%
|
|
|
|
1533 - Moving Pegs | 738 |
57.18%
|
191 |
89.01%
|
|
|
|
1534 - Taekwondo | 245 |
42.86%
|
68 |
85.29%
|
|
|
|
1535 - Lost Lists | 118 |
22.03%
|
38 |
50.00%
|
|
|
|
1536 - Coins | 245 |
14.29%
|
58 |
34.48%
|
|
|
|
1537 - Picnic Planning | 2171 |
21.93%
|
440 |
70.23%
|
|
|
|
1538 - Poly-polygonal Numbers | 103 |
23.30%
|
32 |
50.00%
|
|
|
|
1539 - Rational Approximation | 59 |
20.34%
|
26 |
38.46%
|
|
|
|
1540 - Checker's Check | 32 |
28.12%
|
19 |
42.11%
|
|
|
|
1541 - To Bet or Not To Bet | 129 |
55.04%
|
58 |
77.59%
|
|
|
|
1542 - BSP Trees | 41 |
36.59%
|
20 |
65.00%
|
|
|
|
1543 - Telescope | 607 |
65.24%
|
163 |
94.48%
|
|
|
|
1544 - Simple Arithmetics | 304 |
31.58%
|
54 |
61.11%
|
|
|
|
1545 - The Bulk | 35 |
68.57%
|
21 |
71.43%
|
|
|
|
1546 - Complete the sequence! | 149 |
53.02%
|
65 |
80.00%
|
|
|
|
1547 - Direct Visibility | 44 |
36.36%
|
19 |
57.89%
|
|
|
|
1548 - The Game of Master-Mind | 90 |
57.78%
|
41 |
80.49%
|
|
|
|
1549 - Lattice Point | 224 |
54.02%
|
116 |
83.62%
|
|
|
|
1550 - Coin Exchange | 41 |
26.83%
|
20 |
50.00%
|
|
|
|
1551 - Cog-Wheels | 97 |
21.65%
|
18 |
44.44%
|
|
|
|
1552 - Interactive Permutation Guessing | 204 |
0.00%
|
60 |
0.00%
|
|
|
|
1553 - Buffer Manager | 54 |
51.85%
|
24 |
66.67%
|
|
|
|
1554 - Binary Search | 174 |
49.43%
|
62 |
90.32%
|
|
|
|
1555 - Garland | 885 |
45.31%
|
244 |
94.67%
|
|
|
|
1556 - Disk Tree | 2783 |
29.39%
|
430 |
78.60%
|
|
|
|
1557 - Calendar Game | 171 |
61.40%
|
86 |
84.88%
|
|
|
|
1558 - Number Game | 313 |
29.71%
|
75 |
81.33%
|
|
|
|
1559 - Nim | 265 |
56.60%
|
136 |
82.35%
|
|
|
|
1560 - Extended Lights Out | 680 |
49.56%
|
227 |
87.67%
|
|
|
|
1561 - Cycle Game | 84 |
66.67%
|
39 |
82.05%
|
|
|
|
1562 - Balanced Chemical Equations | 54 |
22.22%
|
22 |
40.91%
|
|
|
|
1563 - SETI | 239 |
40.17%
|
88 |
77.27%
|
|
|
|
1564 - Widget Factory | 602 |
44.02%
|
158 |
91.14%
|
|
|
|
1565 - Stake Your Claim | 26 |
69.23%
|
17 |
58.82%
|
|
|
|
1566 - John | 952 |
73.21%
|
517 |
96.52%
|
|
|
|
1567 - A simple stone game | 194 |
51.55%
|
100 |
81.00%
|
|
|
|
1568 - Domino Puzzle | 48 |
35.42%
|
21 |
61.90%
|
|
|
|
1569 - Multiple | 453 |
25.39%
|
93 |
75.27%
|
|
|
|
1570 - Accelerator | 141 |
0.00%
|
26 |
0.00%
|
|
|
|
1571 - How I Mathematician Wonder What You Are! | 250 |
58.40%
|
109 |
89.91%
|
|
|
|
1572 - Self-Assembly | 4110 |
44.79%
|
707 |
85.86%
|
|
|
|
1573 - Hey, Better Bettor | 164 |
40.85%
|
63 |
57.14%
|
|
|
|
1574 - Surely You Congest | 393 |
30.79%
|
104 |
73.08%
|
|
|
|
1575 - Factors | 1462 |
38.71%
|
233 |
81.97%
|
|
|
|
1576 - Harvard | 134 |
40.30%
|
41 |
46.34%
|
|
|
|
1577 - Low Power | 1289 |
45.85%
|
297 |
80.13%
|
|
|
|
1578 - Map Tiles | 82 |
17.07%
|
24 |
45.83%
|
|
|
|
1579 - Matryoshka | 767 |
54.50%
|
252 |
83.33%
|
|
|
|
1580 - Pirate Chest | 495 |
49.70%
|
152 |
79.61%
|
|
|
|
1581 - Pollution Solution | 307 |
35.18%
|
99 |
70.71%
|
|
|
|
1582 - Up a Tree | 75 |
64.00%
|
33 |
57.58%
|
|
|
|
1583 - Digit Generator | 26951 |
49.08%
|
4611 |
93.88%
|
|
|
|
1584 - Circular Sequence | 18637 |
62.23%
|
3985 |
94.91%
|
|
|
|
1585 - Score | 57212 |
52.88%
|
13899 |
92.18%
|
|
|
|
1586 - Molar mass | 33993 |
52.71%
|
7551 |
92.91%
|
|
|
|
1587 - Box | 25167 |
29.13%
|
2766 |
83.30%
|
|
|
|
1588 - Kickdown | 17772 |
35.87%
|
2270 |
88.85%
|
|
|
|
1589 - Xiangqi | 19866 |
20.12%
|
1655 |
74.02%
|
|
|
|
1590 - IP Networks | 8299 |
35.44%
|
1136 |
87.85%
|
|
|
|
1591 - Data Mining | 2078 |
50.19%
|
414 |
93.48%
|
|
|
|
1592 - Database | 13401 |
37.57%
|
1515 |
88.18%
|
|
|
|
1593 - Alignment of Code | 12813 |
38.14%
|
1694 |
87.37%
|
|
|
|
1594 - Ducci Sequence | 11604 |
60.28%
|
2203 |
94.64%
|
|
|
|
1595 - Symmetry | 11468 |
45.19%
|
1698 |
90.52%
|
|
|
|
1596 - Bug Hunt | 3326 |
48.02%
|
588 |
89.29%
|
|
|
|
1597 - Searching the Web | 5993 |
26.36%
|
558 |
72.94%
|
|
|
|
1598 - Exchange | 2139 |
29.31%
|
290 |
79.31%
|
|
|
|
1599 - Ideal Path | 16359 |
21.63%
|
1240 |
71.45%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |
Browse Problems 

