| Flag | ID | Title | Ratio(Solve/Submit) | OJ | VPID |
|---|---|---|---|---|---|
| 1416 | Blocks | 25.00% (3/12) | PKU | 2363 | |
| 1417 | Faucet Flow | 0.00% (0/0) | PKU | 2364 | |
| 1418 | Rope | 0.00% (0/0) | PKU | 2365 | |
| 1419 | Sacrament of the sum | 25.00% (3/12) | PKU | 2366 | |
| 1420 | Buttons | 11.11% (1/9) | PKU | 2368 | |
| 1421 | Permutations | 0.00% (0/0) | PKU | 2369 | |
| 1422 | Democracy in danger | 25.00% (3/12) | PKU | 2370 | |
| 1423 | Questions and answers | 33.33% (3/9) | PKU | 2371 | |
| 1424 | D++ Again | 50.00% (2/4) | PKU | 2372 | |
| 1425 | Dividing the Path | 28.57% (2/7) | PKU | 2373 | |
| 1426 | Fence Obstacle Course | 14.29% (1/7) | PKU | 2374 | |
| 1427 | Cow Ski Area | 12.50% (1/8) | PKU | 2375 | |
| 1428 | Cleaning Shifts | 16.67% (2/12) | PKU | 2376 | |
| 1429 | Bad Cowtractors | 15.38% (2/13) | PKU | 2377 | |
| 1430 | Tree Cutting | 16.67% (2/12) | PKU | 2378 | |
| 1431 | ACM Rank Table | 16.67% (2/12) | PKU | 2379 | |
| 1432 | Sales Report | 16.67% (2/12) | PKU | 2380 | |
| 1433 | Random Gap | 22.22% (2/9) | PKU | 2381 | |
| 1434 | Circle Drawing | 0.00% (0/0) | PKU | 2383 | |
| 1435 | Harder Sokoban Problem | 0.00% (0/4) | PKU | 2384 | |
| 1436 | Apple Catching | 25.00% (3/12) | PKU | 2385 | |
| 1437 | Lake Counting | 16.67% (2/12) | PKU | 2386 | |
| 1438 | Til the Cows Come Home | 16.67% (2/12) | PKU | 2387 | |
| 1439 | Who's in the Middle | 17.65% (3/17) | PKU | 2388 | |
| 1440 | Bull Math | 25.00% (3/12) | PKU | 2389 | |
| 1441 | Bank Interest | 33.33% (1/3) | PKU | 2390 | |
| 1442 | Ombrophobic Bovines | 0.00% (0/3) | PKU | 2391 | |
| 1443 | Space Elevator | 20.00% (2/10) | PKU | 2392 | |
| 1444 | Yogurt factory | 27.27% (3/11) | PKU | 2393 | |
| 1445 | Checking an Alibi | 11.76% (2/17) | PKU | 2394 | |
| 1446 | Out of Hay | 18.18% (2/11) | PKU | 2395 | |
| 1447 | Toy Storage | 0.00% (0/0) | PKU | 2398 | |
| 1448 | A Mayor Problem | 0.00% (0/0) | PKU | 2399 | |
| 1449 | Supervisor, Supervisee | 0.00% (0/0) | PKU | 2400 | |
| 1450 | Street Polygon | 0.00% (0/0) | PKU | 2401 | |
| 1451 | Palindrome Numbers | 27.27% (3/11) | PKU | 2402 | |
| 1452 | Hay Points | 14.29% (1/7) | PKU | 2403 | |
| 1453 | Jogging Trails | 14.29% (2/14) | PKU | 2404 | |
| 1454 | Beavergnaw | 0.00% (0/0) | PKU | 2405 | |
| 1455 | Power Strings | 16.67% (3/18) | PKU | 2406 | |
| 1456 | Relatives | 25.00% (3/12) | PKU | 2407 | |
| 1457 | Anagram Groups | 0.00% (0/1) | PKU | 2408 | |
| 1458 | Let it Bead | 0.00% (0/0) | PKU | 2409 | |
| 1459 | Simple Computers | 22.22% (2/9) | PKU | 2410 | |
| 1460 | Mondriaan's Dream | 0.00% (0/0) | PKU | 2411 | |
| 1461 | Equidistance | 33.33% (2/6) | PKU | 2412 | |
| 1462 | How many Fibs? | 0.00% (0/11) | PKU | 2413 | |
| 1463 | Hike on a Graph | 0.00% (0/0) | PKU | 2415 | |
| 1464 | Return of the Jedi | 20.00% (1/5) | PKU | 2416 | |
| 1465 | Discrete Logging | 16.67% (2/12) | PKU | 2417 |