| ID | Title | Ratio(AC/Submit) |
|---|---|---|
| 1511 | Dominos 2 | 3/4 |
| 1512 | Logo 2 | 1/2 |
| 1513 | Laurel Creek | 1/1 |
| 1514 | Rocket Stages | 1/2 |
| 1515 | Virtual Friends | 5/7 |
| 1516 | Dominos | 4/7 |
| 1517 | Logo | 1/2 |
| 1518 | Trainsorting | 4/4 |
| 1519 | Classified | 1/2 |
| 1520 | Hot Spot | 1/2 |
| 1521 | Snakes and Ladders | 3/7 |
| 1522 | Balance | 1/1 |
| 1523 | Tournament | 2/2 |
| 1524 | Wedding | 4/10 |
| 1525 | Exchange Rates | 2/2 |
| 1526 | Conformity | 2/2 |
| 1527 | Pseudoprime numbers | 4/14 |
| 1528 | Carpool | 1/1 |
| 1529 | Friend or Foe? | 1/1 |
| 1530 | Open Source | 1/3 |
| 1531 | Antimonotonicity | 2/5 |
| 1532 | Humidex | 3/5 |
| 1533 | Tour de France | 0/4 |
| 1534 | Texas Trip | 1/1 |
| 1535 | 字符串还原 | 39/454 |
| 1536 | 包裹快递 | 8/98 |
| 1537 | 圆环取数 | 2/13 |
| 1538 | 逃脱 | 1/4 |
| 1539 | I’m tired | 30/129 |
| 1540 | Yy’s celebration | 32/68 |
| 1541 | Student’s question | 161/787 |
| 1542 | Seven little Man | 1/20 |
| 1543 | A simple problem | 8/155 |
| 1544 | R(N) | 209/569 |
| 1545 | Liang Guo Sha | 3/4 |
| 1546 | Black And White | 2/3 |
| 1547 | Turn Right | 1/3 |
| 1548 | SUFFIX | 2/2 |
| 1549 | Super Mario | 1/2 |
| 1550 | Game | 1/2 |
| 1551 | Sequence Decomposition | 1/1 |
| 1552 | Road constructions | 1/2 |
| 1553 | Beiju | 1/1 |
| 1554 | Little Sheep | 1/1 |
| 1555 | A Math Homework | 153/367 |
| 1556 | Calculating Area | 55/186 |
| 1557 | Confession | 42/116 |
| 1558 | Buns | 17/104 |
| 1559 | ACM | 17/168 |
| 1560 | Two Machines Scheduling | 5/36 |
| 1561 | Shortest Route | 1/1 |
| 1562 | Abbreviation | 15/233 |
| 1563 | A Very Simple Problem | 56/381 |
| 1564 | Administrator’s task | 4/8 |
| 1565 | Sudoku | 66/244 |
| 1566 | Logo Turtle | 37/146 |
| 1567 | Lucky Sum | 3/27 |
| 1568 | Next K-Bit Number | 226/619 |
| 1569 | Gift | 19/135 |
| 1570 | Lazy. Lazy. Laaaaaaaaaaaazy! | 138/425 |
| 1571 | The Battle of Inuyasha | 2/3 |
| 1572 | Jeep Plus | 10/19 |
| 1573 | Grid Computing | 9/21 |
| 1574 | Snowflakes in YangShen’s Home | 161/437 |
| 1575 | Polynomial Integration | 200/692 |
| 1576 | Extractor | 154/341 |
| 1577 | 切西瓜 | 79/316 |
| 1578 | 切蛋糕 | 173/356 |
| 1579 | Portal | 16/55 |
| 1580 | Rubik | 18/97 |
| 1581 | Morse Code Breaking | 21/37 |
| 1583 | 长度单位 | 110/554 |
| 1584 | 摆放餐桌 | 135/712 |
| 1585 | 排队 | 228/474 |
| 1586 | 数字排列 | 41/102 |
| 1587 | Take a Bath | 3/49 |
| 1588 | 辗转数对 | 28/161 |
| 1589 | 找出子串 | 14/95 |
| 1590 | 方块游戏 | 21/42 |
| 1591 | 幸运排列 | 3/44 |
| 1592 | XML语言 | 54/177 |
| 1593 | Game | 10/31 |
| 1594 | 单词测试 | 11/41 |
| 1595 | LOGO | 1/19 |
| 1596 | 加法与异或 | 11/110 |
| 1597 | 斐波拉契数列 | 1/91 |
| 1598 | 比赛晋级 | 49/163 |
| 1599 | Multiple | 159/605 |
| 1600 | Lucky Numbers | 124/436 |
| 1601 | Shepherd | 85/513 |
| 1602 | Substring | 174/772 |
| 1603 | Deadly Disease | 15/43 |
| 1604 | Bipartite Graph | 32/75 |
| 1605 | Gene recombination | 83/364 |
| 1606 | Naive | 141/793 |
| 1607 | Triangles | 161/605 |
| 1608 | Dating With Girls | 122/603 |
| 1609 | AntiVirus | 104/401 |
| 1610 | CardGame | 2/22 |
| 1611 | The mell hell | 153/335 |