ID 题目 显示标签 隐藏标签 AC / 尝试 难度
705 U2223JS3  Moo Route 2 / 4 6
712 U2223OB1  FEB 0 / 0 6
713 U2223OB2  Moo Language 0 / 0 6
714 U2223OB3  Rotate and Shift 0 / 0 6
753 U2324DB1  Candy Cane Feast 0 / 1 6
754 U2324DB2  Cowntact Tracing 2 1 / 1 6
755 U2324DB3  Farmer John Actually Farms 0 / 0 6
184 USACO111  Your Ride Is Here 2 / 12 10
229 USACO112  Greedy Gift Givers 0 / 0 4
230 USACO113  Friday the Thirteenth 0 / 0 4
231 USACO114  Broken Necklace 0 / 0 4
232 USACO121  Milking Cows 9 / 40 4
135 USACO122  Transformations 0 / 0 (无)
136 USACO123  Name That Number 0 / 4 10
137 USACO124  Palindromic Squares 0 / 0 (无)
138 USACO125  Dual Palindromes 0 / 0 (无)
139 USACO131  Mixing Milk 0 / 0 (无)
140 USACO132  Barn Repair 0 / 0 (无)
141 USACO133  Calf Flac 0 / 0 (无)
142 USACO134  Prime Cryptarithm 0 / 0 (无)
233 USACO135  Combination Lock 0 / 0 4
234 USACO136  wormholes 0 / 0 5
235 USACO137  Ski Course Design 0 / 0 4
143 USACO141  Packing Rectangles 0 / 0 (无)
144 USACO142  The Clocks 0 / 0 (无)
145 USACO143  Arithmetic Progressions 0 / 1 10
146 USACO144  Mother's Milk 0 / 0 (无)
147 USACO151  Number Triangles 0 / 0 (无)
148 USACO152  Prime Palindromes 0 / 0 (无)
149 USACO153  Superprime Rib 0 / 0 (无)
150 USACO154  Checker Challenge 0 / 0 (无)
151 USACO211  The Castle 0 / 0 (无)
152 USACO212  Ordered Fractions 0 / 0 (无)
153 USACO213  Sorting a Three-Valued Sequence 0 / 0 (无)
154 USACO214  Healthy Holsteins 0 / 0 (无)
155 USACO215  Hamming Codes 0 / 0 (无)
156 USACO221  Preface Numbering 0 / 0 (无)
157 USACO222  Subset Sums 0 / 0 (无)
158 USACO223  Runaround Numbers 0 / 0 (无)
159 USACO224  Party Lamps 0 / 0 (无)
160 USACO231  Longest Prefix 0 / 0 (无)
161 USACO232  Cow Pedigrees 0 / 0 (无)
162 USACO233  Zero Sum 0 / 0 (无)
163 USACO234  Money Systems 0 / 0 (无)
164 USACO235  Controlling Companies 0 / 0 (无)
165 USACO241  The Tamworth Two 0 / 0 (无)
166 USACO242  Overfencing 0 / 0 (无)
167 USACO243  Cow Tours 0 / 0 (无)
168 USACO244  Bessie Come Home 0 / 0 (无)
169 USACO245  Fractions to Decimals 0 / 0 (无)
170 USACO311  Agri-Net 0 / 0 (无)
171 USACO312  Score Inflation 0 / 0 (无)
172 USACO313  Humble Numbers 0 / 0 (无)
173 USACO314  Shaping Regions 0 / 0 (无)
174 USACO315  Contact 0 / 0 (无)
175 USACO316  Stamps 0 / 0 (无)
176 USACO321  Factorials 0 / 0 (无)
177 USACO322  Stringsobits 0 / 0 (无)
178 USACO323  Spinning Wheels 0 / 0 (无)
179 USACO324  Feed Ratios 0 / 0 (无)
180 USACO325  Magic Squares 0 / 0 (无)
181 USACO326  Sweet Butter 0 / 0 (无)
182 USACO331  Riding the Fences 0 / 0 (无)
183 USACO332  Shopping Offers 0 / 0 (无)
185 USACO333  Camelot 0 / 0 (无)
186 USACO334  Home on the Range 0 / 0 (无)
187 USACO335  A Game 0 / 0 (无)
188 USACO341  Closed Fences 0 / 0 (无)
189 USACO342  American Heritage 0 / 0 (无)
190 USACO343  Electric Fence 0 / 0 (无)
191 USACO344  Raucous Rockers 0 / 0 (无)
192 USACO411  Beef McNuggets 0 / 0 (无)
193 USACO412  Fence Rails 0 / 0 (无)
194 USACO413  Fence Loops 0 / 0 (无)
195 USACO414  Cryptcowgraphy 0 / 0 (无)
196 USACO421  Drainage Ditches 0 / 0 (无)
197 USACO422  The Perfect Stall 0 / 0 (无)
198 USACO423  Job Processing 0 / 0 (无)
199 USACO424  Cowcycles 0 / 0 (无)
200 USACO431  Buy Low, Buy Lower 0 / 0 (无)
201 USACO432  The Primes 0 / 0 (无)
202 USACO433  Street Race 0 / 0 (无)
203 USACO434  Letter Game 0 / 0 (无)
204 USACO441  Shuttle Puzzle 0 / 0 (无)
205 USACO442  Pollutant Control 0 / 0 (无)
206 USACO443  Frame Up 0 / 0 (无)
207 USACO511  Fencing the Cows 0 / 0 (无)
208 USACO512  Starry Night 0 / 0 (无)
209 USACO513  Musical Themes 0 / 0 (无)
210 USACO521  Snail Trails 0 / 0 (无)
211 USACO522  Electric Fences 0 / 0 (无)
212 USACO523  Wisconsin Squares 0 / 0 (无)
213 USACO531  Milk Measuring 0 / 0 (无)
214 USACO532  Window Area 0 / 0 (无)
215 USACO533  Network of Schools 0 / 0 (无)
216 USACO534  Big Barn 0 / 0 (无)
217 USACO541  All Latin Squares 0 / 0 (无)
218 USACO542  Canada Tour 0 / 0 (无)
219 USACO543  Character Recognition 0 / 0 (无)
220 USACO544  Betsy's Tour 0 / 0 (无)