|
|
401 |
Falling Portals |
2 |
50%
|
|
USACO 2020 JAN Platinum |
|
|
402 |
Non-Decreasing Subsequences |
4 |
25%
|
|
USACO 2020 JAN Platinum |
|
|
403 |
Time is Mooney |
6 |
50%
|
|
USACO 2020 JAN Gold |
|
|
404 |
Farmer John Solves 3SUM |
2 |
100%
|
|
USACO 2020 JAN Gold |
|
|
405 |
Springboards |
5 |
60%
|
|
USACO 2020 JAN Gold |
|
|
406 |
Delegation |
5 |
0%
|
|
USACO 2020 FEB Platinum |
|
|
407 |
Equilateral Triangles |
5 |
0%
|
|
USACO 2020 FEB Platinum |
|
|
408 |
Help Yourself |
1 |
0%
|
|
USACO 2020 FEB Platinum |
|
|
409 |
Timeline |
0 |
-
|
|
USACO 2020 FEB Gold |
|
|
410 |
Help Yourself |
9 |
0%
|
|
USACO 2020 FEB Gold |
|
|
411 |
Delegation |
1 |
0%
|
|
USACO 2020 FEB Gold |
|
|
412 |
Sprinklers 2: Return of the Alfalfa |
1 |
100%
|
|
USACO 2020 OPEN Platinum |
|
|
413 |
Exercise |
5 |
40%
|
|
USACO 2020 OPEN Platinum |
|
|
414 |
Circus |
6 |
16.67%
|
|
USACO 2020 OPEN Platinum |
|
|
415 |
Haircut |
4 |
25%
|
|
USACO 2020 OPEN Gold |
|
|
416 |
Favorite Colors |
1 |
100%
|
|
USACO 2020 OPEN Gold |
|
|
417 |
Exercise |
2 |
50%
|
|
USACO 2020 OPEN Gold |
|
|
418 |
Sleeping Cows |
1 |
100%
|
|
USACO 2020 DEC Platinum |
|
|
419 |
Cowmistry |
0 |
-
|
|
USACO 2020 DEC Platinum |
|
|
420 |
Spaceship |
0 |
-
|
|
USACO 2020 DEC Platinum |
|
|
421 |
Replication |
1 |
0%
|
|
USACO 2020 DEC Gold |
|
|
422 |
笨拙的手指 |
1 |
0%
|
枚举
Hash
进制
|
USACO 2011 November Contest Bronze Division |
|
|
423 |
奶牛选美 |
3 |
33.33%
|
广搜BFS
深搜DFS
|
USACO 2011 November Contest Bronze Division |
|
|
424 |
干草堆 |
2 |
100%
|
差分
|
USACO 2012 January Contest Bronze Division |
|
|
425 |
拖拉机 |
0 |
-
|
广搜BFS
|
USACO 2012 March Contest Silver Division |
|
|
426 |
岛 |
2 |
50%
|
离散化
枚举
|
USACO 2012 US Open Bronze Division |
|
|
427 |
马蹄铁 |
0 |
-
|
深搜DFS
|
USACO 2012 November Contest Bronze |
|
|
428 |
打乱字母 |
0 |
-
|
贪心
二分
|
USACO 2012 December Contest Bronze |
|
|
429 |
粉刷栅栏 |
0 |
-
|
离散化
扫描线
差分
|
USACO 2013 January Contest Bronze |
|
|
430 |
奶牛过马路 |
0 |
-
|
排序
前缀最值
|
USACO 2013 February Contest Bronze |
|
|
431 |
品种邻近 |
5 |
40%
|
枚举
队列
双指针
|
USACO 2013 March Contest Bronze |
|
|
432 |
闪烁 |
0 |
-
|
找环
|
USACO 2013 US Open Bronze |
|
|
433 |
金发姑娘和 N 头牛 |
0 |
-
|
离散化
差分
|
USACO 2013 November Contest Bronze |
|
|
434 |
奶牛棒球 |
2 |
0%
|
枚举
双指针
二分
|
USACO 2013 December Contest Bronze |
|
|
435 |
贝茜放慢脚步 |
0 |
-
|
多路归并
|
USACO 2014 January Contest Silver / Bronze |
|
|
436 |
镜子田地 |
0 |
-
|
最短路径
深搜DFS
|
USACO 2014 February Contest Bronze |
|
|
437 |
懒惰的牛 |
8 |
12.5%
|
枚举
前缀和
双指针
|
USACO 2014 March Contest Bronze |
|
|
438 |
公平摄影 |
2 |
0%
|
枚举
前缀和
Hash
|
USACO 2014 US Open Bronze |
|
|
439 |
奶牛慢跑 |
0 |
-
|
单调栈
|
USACO 2014 December Contest Bronze |
|
|
440 |
COW |
7 |
57.14%
|
递推
|
USACO 2015 February Contest Bronze |
|
|
441 |
贝茜的报复 |
0 |
-
|
枚举
深搜DFS
|
USACO 2015 US Open Bronze |
|
|
442 |
愤怒的奶牛 |
5 |
20%
|
枚举
广搜BFS
|
USACO 2016 January Contest Bronze |
|
|
443 |
圆形牛棚 |
0 |
-
|
枚举
前缀和
|
USACO 2016 February Contest Bronze |
|
|
444 |
农田缩减 |
0 |
-
|
枚举
|
USACO 2016 US Open Contest Bronze |
|
|
445 |
方块游戏 |
0 |
-
|
枚举
|
USACO 2016 December Contest Bronze |
|
|
446 |
蹄子剪刀布 |
0 |
-
|
枚举
|
USACO 2017 January Contest Bronze |
|
|
447 |
牛为什么过马路 II |
0 |
-
|
枚举
|
USACO 2017 February Contest Bronze |
|
|
448 |
牛的基因组学 |
3 |
66.67%
|
枚举
|
USACO 2017 US Open Contest Bronze |
|
|
449 |
牛的洗牌 |
0 |
-
|
|
USACO 2017 December Contest Bronze |
|
|
450 |
救生员 |
13 |
46.15%
|
枚举
差分
|
USACO 2018 January Contest Bronze |
|
|
451 |
蹄球 |
1 |
100%
|
思维题
|
USACO 2018 February Contest Bronze |
|
|
452 |
挤奶顺序 |
0 |
-
|
思维题
|
USACO 2018 US Open Contest Bronze |
|
|
453 |
桶列表 |
1 |
100%
|
差分
|
USACO 2018 December Contest Bronze |
|
|
454 |
困牛排序 |
0 |
-
|
排序
思维题
构造
|
USACO 2019 January Contest Bronze |
|
|
455 |
大型植被恢复 |
0 |
-
|
构造
|
USACO 2019 February Contest Bronze |
|
|
456 |
牛奶工厂 |
8 |
37.5%
|
枚举
图论
思维题
|
USACO 2019 US Open Contest Bronze |
|
|
457 |
我在哪？ |
4 |
50%
|
Hash
二分
|
USACO 2019 December Contest Bronze |
|
|
458 |
疯狂的科学家 |
3 |
100%
|
贪心
|
USACO 2020 February Contest Bronze |
|
|
459 |
社交距离 II |
4 |
25%
|
贪心
双指针
|
USACO 2020 US Open Contest Bronze |
|
|
460 |
孤独的照片 |
12 |
16.67%
|
枚举
|
USACO 2021 December Contest Bronze |
|
|
461 |
上课睡觉 |
23 |
17.39%
|
枚举
|
USACO 2022 February Contest Bronze |
|
|
462 |
奶牛大学 |
16 |
43.75%
|
排序
枚举
|
USACO 2022 December Contest Bronze |