| 1400 | Sequence one | 18.18%(2/11) |
| 1401 | Large Division | 37.50%(6/16) |
| 1402 | Fantasy of a Summation | 20.00%(4/20) |
| 1403 | Help Hanzo | 11.76%(4/34) |
| 1404 | Trailing Zeroes (III) | 34.21%(13/38) |
| 1405 | GCD - Extreme (II) | 29.41%(5/17) |
| 1406 | 青蛙的约会 | 29.30%(104/355) |
| 1407 | C Looooops | 26.07%(67/257) |
| 1408 | Death to Binary? | 30.77%(4/13) |
| 1409 | Primes | 32.55%(69/212) |
| 1410 | The equation | 11.86%(7/59) |
| 1411 | Farey Sequence | 44.64%(50/112) |
| 1412 | 当年，我还是个孩子 | 27.57%(59/214) |
| 1414 | 法，侣，财，财，财... | 13.04%(3/23) |
| 1415 | 奥数战场 | 33.93%(19/56) |
| 1416 | 若兰妹妹，我来了！ | 23.53%(4/17) |
| 1417 | 英语还是很重要的，比如说这题 | 37.45%(400/1068) |
| 1418 | Lucky Number | 21.92%(395/1802) |
| 1419 | Drainage Ditches | 48.35%(44/91) |
| 1420 | Flow Problem | 24.10%(60/249) |
| 1421 | Task Schedule | 18.42%(7/38) |
| 1422 | Leapin' Lizards | 33.33%(4/12) |
| 1423 | Kakuro Extension | 14.29%(1/7) |
| 1424 | kebab | 28.57%(2/7) |
| 1425 | Escape | 26.09%(6/23) |
| 1426 | Marriage Match II | 33.33%(3/9) |
| 1427 | Pahom on Water | 28.57%(2/7) |
| 1428 | Route Redundancy | 42.86%(3/7) |
| 1429 | Marriage Match III | 40.00%(2/5) |
| 1430 | Marriage Match IV | 57.14%(4/7) |
| 1431 | Destroying the bus stations | 44.44%(8/18) |
| 1432 | Treasure Hunting | 33.33%(2/6) |
| 1433 | Sequence | 57.14%(4/7) |
| 1434 | Seikimatsu Occult Tonneru | 40.00%(2/5) |
| 1435 | HS BDC | 37.50%(3/8) |
| 1436 | Redundant Paths | 36.84%(14/38) |
| 1437 | Road Construction | 72.73%(16/22) |
| 1438 | Network of Schools | 45.16%(14/31) |
| 1439 | Popular Cows | 43.59%(17/39) |
| 1440 | The Bottom of a Graph | 39.29%(11/28) |
| 1441 | Knights of the Round Table | 25.00%(1/4) |
| 1442 | Network | 33.33%(3/9) |
| 1443 | Til the Cows Come Home | 25.65%(98/382) |
| 1444 | Frogger | 26.91%(67/249) |
| 1445 | Heavy Transportation | 37.04%(30/81) |
| 1446 | Silver Cow Party | 38.46%(60/156) |
| 1447 | Currency Exchange | 30.23%(13/43) |
| 1448 | Wormholes | 26.87%(72/268) |
| 1449 | MPI Maelstrom | 43.48%(10/23) |
| 1450 | Cow Contest | 70.93%(61/86) |
| 1451 | Arbitrage | 43.48%(10/23) |
| 1452 | Invitation Cards | 39.53%(17/43) |
| 1453 | Candies | 19.58%(37/189) |
| 1454 | Subway | 50.00%(5/10) |
| 1455 | 昂贵的聘礼 | 66.67%(6/9) |
| 1456 | Tram | 34.83%(62/178) |
| 1457 | Layout | 40.91%(9/22) |
| 1458 | The Shortest Path in Nya Graph | 45.45%(5/11) |
| 1459 | Marriage Match IV | 44.44%(4/9) |
| 1460 | 0 or 1 | 62.50%(5/8) |
| 1461 | Cake | 0.00%(0/4) |
| 1462 | Halloween Costumes | 25.00%(2/8) |
| 1463 | Brackets | 40.52%(62/153) |
| 1464 | Coloring Brackets | 11.76%(2/17) |
| 1465 | Multiplication Puzzle | 61.90%(13/21) |
| 1466 | Food Delivery | 0.00%(0/4) |
| 1467 | You Are the One | 50.00%(8/16) |
| 1468 | String painter | 42.86%(3/7) |
| 1469 | MZL's xor | 52.94%(9/17) |
| 1470 | MZL's chemistry | 38.46%(5/13) |
| 1471 | MZL's endless loop | 20.00%(3/15) |
| 1472 | MZL's simple problem | 37.10%(23/62) |
| 1473 | Average | 22.22%(2/9) |
| 1474 | Cake | 15.38%(2/13) |
| 1475 | First One | 20.00%(3/15) |
| 1476 | Hiking | 40.00%(2/5) |
| 1477 | In Touch | 28.57%(2/7) |
| 1478 | Key Set | 50.00%(9/18) |
| 1479 | Garden of Eden | 18.42%(49/266) |
| 1480 | To The Max | 46.51%(40/86) |
| 1481 | Ignatius and the Princess III | 45.76%(27/59) |
| 1482 | How to Type | 60.00%(9/15) |
| 1483 | Sumsets | 30.77%(16/52) |
| 1484 | 完美队形 | 40.91%(9/22) |
| 1485 | Constructing Roads | 33.09%(90/272) |
| 1486 | 还是畅通工程 | 27.80%(119/428) |
| 1487 | 畅通工程 | 33.74%(137/406) |
| 1488 | 畅通工程再续 | 38.83%(106/273) |
| 1489 | find the most comfortable road | 48.37%(74/153) |
| 1490 | 继续畅通工程 | 33.14%(117/353) |
| 1491 | Connect the Cities | 17.92%(76/424) |
| 1492 | Jungle Roads | 64.89%(61/94) |
| 1493 | Eddy's picture | 53.98%(61/113) |
| 1494 | Farm Irrigation | 26.25%(21/80) |
| 1495 | find the most comfortable road | 74.19%(23/31) |
| 1496 | Minimal Ratio Tree | 62.50%(5/8) |
| 1497 | Qin Shi Huang's National Road System | 33.33%(6/18) |
| 1498 | Genghis Khan the Conqueror | 33.33%(2/6) |
| 1499 | 畅通工程续 | 27.72%(107/386) |