Farmer John's 3 prize cows, Bessie, Elsie, and Mildred, are always wandering off to the far reaches of the farm! He needs your help herding them back together. The main field in the farm is long an...
整理自USACO官网，名单较长，建议使用页面内查找（Ctrl+F）快速定位 Final Results: USACO 2019 February Contest, Bronze Key: * = Correct x = Wrong Answer (including possibly empty or missing output file...
Every day the express train goes past the farm. It has NN carriages (1≤N≤1051≤N≤105), each with a positive integer label between 11and 109109; different carriages may have the same label. Usually, ...
Bessie the cow realizes she needs to exercise more in order to stay in good shape. She needs your help selecting potential routes around the farm that she can use for her morning jogging routine. T...
The cow mega-city Bovinopolis is redistricting! -- always a contentious political process between the two major cow breeds (Holsteins and Guernseys) living there, since both breeds want to make sur...
整理自USACO官网，名单较长，建议使用页面内查找（Ctrl+F）快速定位 Final Results: USACO 2019 January Contest, Platinum Key: * = Correct x = Wrong Answer (including possibly empty or missing output fil...
整理自USACO官网，名单较长，建议使用页面内查找（Ctrl+F）快速定位 Final Results: USACO 2019 January Contest, Gold Key: * = Correct x = Wrong Answer (including possibly empty or missing output file) t...
整理自USACO官网，名单较长，建议使用页面内查找（Ctrl+F）快速定位 Final Results: USACO 2019 January Contest, Silver Key: * = Correct x = Wrong Answer (including possibly empty or missing output file)...
Every evening, Farmer John rings a giant bell that summons his cows to the barn for dinner. Eager to get to the barn as quickly as possible, they all follow the shortest possible route to get there...
