2021年USACO 2月比赛金级获奖名单
Final Results: USACO 2021 February Contest, Gold Key: * = Correct x = Wrong Answer (including possibly empty or missing output file) t = Timeout c = Didn't Compile ! = Run-time error or exceeded me...
USACO 2021 February Contest, Gold Problem 3. Count the Cows
USACO 2021 February Contest, Gold Problem 3. Count the Cows As is typical, Farmer John's cows have spread themselves out along his largest pasture, which can be regarded as a large 2D grid of squar...
USACO 2021 February Contest, Gold Problem 2. Modern Art 3
USACO 2021 February Contest, Gold Problem 2. Modern Art 3 Having become bored with standard 2-dimensional artwork (and also frustrated at others copying her work), the great bovine artist Picowso h...
USACO 2021 February Contest, Gold Problem 1. Stone Game
USACO 2021 February Contest, Gold Problem 1. Stone Game Bessie and Elsie are playing a game with NN (1≤N≤1051≤N≤105) piles of stones, where the ii-th pile has aiai stones for each 1≤i≤N1≤i≤N (1≤ai≤...
USACO 2021 February Contest, Platinum Problem 3. Counting Graphs
USACO 2021 February Contest, Platinum Problem 3. Counting Graphs Bessie has a connected, undirected graph GG with NN vertices labeled 1…N1…N and MM edges (2≤N≤102,N−1≤M≤N2+N22≤N≤102,N−1≤M≤N2+N2). G...
USACO 2021 February Contest, Platinum Problem 2. Minimizing Edges
USACO 2021 February Contest, Platinum Problem 2. Minimizing Edges Bessie has a connected, undirected graph GG with NN vertices labeled 1…N1…N and MM edges (2≤N≤105,N−1≤M≤N2+N22≤N≤105,N−1≤M≤N2+N2). ...
USACO 2021 US Open, Platinum Problem 3. Balanced Subsets
USACO 2021 US Open, Platinum Problem 3. Balanced Subsets Farmer John's pasture can be regarded as a large 2D grid of square "cells" (picture a huge chessboard) labeled by the ordered pairs (i,j)(i,...
USACO 2021 February Contest, Platinum Problem 1. No Time to Dry
USACO 2021 February Contest, Platinum Problem 1. No Time to Dry Bessie has recently received a painting set, and she wants to paint the long fence at one end of her pasture. The fence consists of N...
USACO 2021 January Contest, Bronze Problem 3. Just Stalling
USACO 2021 January Contest, Bronze Problem 3. Just Stalling Farmer John has NN cows (1≤N≤201≤N≤20) of heights a1…aNa1…aN. His barn has NN stalls with max height limits b1…bNb1…bN (so for example, i...
