ID 题目 显示标签 隐藏标签 AC / 尝试 难度
144 AT1854  B - Weak Password 8 / 28 7
148 AT1857  E - Safety Journey 1 / 1 10
149 AT1858  F - Greedy Takahashi 1 / 1 10
150 AT1859  G - Power Pair 1 / 1 10
152 AT1860  H - Nim Counting 1 / 1 10
153 AT1861  A - Bitwise Exclusive Or 8 / 17 7
154 AT1862  B - Booby Prize 7 / 26 7
155 AT1863  C - Reorder Cards 6 / 21 8
157 AT1865  E - Stronger Takahashi 1 / 5 10
159 AT1866  F - Common Prefixes 1 / 7 10
160 AT1867  G - Connectivity 2 1 / 1 10
161 AT1868  H - Stroll 1 / 24 10
162 AT1869  A - New Generation ABC 9 / 10 9
164 AT1870  B - How many? 9 / 21 7
165 AT1871  C - Distribution 0 / 0 (无)
166 AT1872  D - Sum of Maximum Weights 1 / 1 10
167 AT1873  E - Packing Under Range Regulations 1 / 1 10
168 AT1874  F - Substrings 1 / 1 10
170 AT1875  G - Three Permutations 1 / 1 10
171 AT1876  H - Collecting 1 / 10 10
173 AT1878  B - log2(N) 8 / 73 9
174 AT1879  C - One More aab aba baa 17 / 23 4
176 AT1880  D - Coprime 2 4 / 31 9
177 AT1881  E - Chain Contestant 6 / 12 9
178 AT1882  F - Dist Max 2 6 / 17 8
179 AT1883  G - Colorful Candies 2 5 / 16 8
181 AT1884  H - Cabbage Master 1 / 1 10
182 AT1885  A - Signed Difficulty 8 / 15 7
183 AT1886  B - Same Name 9 / 13 7
185 AT1888  D - Pair of Balls 0 / 0 (无)
186 AT1889  E - Amusement Park 0 / 0 (无)
188 AT1890  F - Max Sum Counting 1 / 1 10
189 AT1891  G - 01Sequence 1 / 1 10
190 AT1892  H - Random Robots 1 / 1 10
192 AT1893  A - Lexicographic Order 8 / 8 9
193 AT1894  B - AtCoder Quiz 8 / 9 9
194 AT1895  C - Inverse of Permutation 9 / 18 7
195 AT1896  D - Cutting Woods 17 / 39 5
196 AT1897  E - Sorting Queries 17 / 56 6
197 AT1898  F - Make Pair 7 / 31 8
198 AT1899  G - Groups 7 / 16 8
200 AT1900  H - Snuketoon 1 / 1 10
201 AT1901  A - Weather Forecast 8 / 14 8
203 AT1902  B - qwerty 8 / 10 9
204 AT1903  C - Shapes 0 / 0 (无)
205 AT1904  D - Rectangles 0 / 0 (无)
206 AT1905  E - Destruction 0 / 0 (无)
207 AT1906  F - Blocked Roads 1 / 1 10
208 AT1907  G - Game on Tree 2 1 / 1 10
209 AT1908  H - Red and Blue Lamps 1 / 1 10
210 AT1909  A - AtCoder Quiz 2 8 / 11 8
8 AT1910  B - Maritozzo 8 / 11 8
9 AT1911  C - Neo-lexicographic Ordering 9 / 18 7
10 AT1912  D - Strange Lunchbox 9 / 39 7
11 AT1913  E - Moat 1 / 1 10
12 AT1914  F - Cleaning Robot 1 / 1 10
13 AT1915  G - Propagation 1 / 1 10
15 AT1916  H - Candles 1 / 33 10
16 AT1917  A - Find Multiple 8 / 15 7
17 AT1918  B - Base K 7 / 16 8
18 AT1919  C - Long Sequence 8 / 58 8
20 AT1920  D - FG operation 0 / 0 (无)
21 AT1921  E - Distance on Large Perfect Binary Tree 1 / 1 10
22 AT1922  F - Distance Sums 2 1 / 2 10
23 AT1923  G - Isosceles Trapezium 1 / 9 10
24 AT1924  H - Security Camera 1 / 4 10
26 AT1925  A - Seismic magnitude scales 9 / 18 7
27 AT1926  B - typo 8 / 14 8
28 AT1927  C - Select Mul 8 / 21 7
29 AT1928  D - Online games 8 / 21 7
30 AT1929  E - LEQ 1 / 3 10
32 AT1930  F - Diameter set 1 / 1 10
33 AT1931  G - Jumping sequence 0 / 3 10
34 AT1932  H - Count Multiset 1 / 1 10
35 AT1933  A - Four Digits 9 / 10 9
37 AT1934  B - Failing Grade 9 / 14 8
38 AT1935  C - Swiss-System Tournament 1 / 1 10
39 AT1936  D - Between Two Arrays 0 / 0 (无)
40 AT1937  E - Red and Blue Tree 1 / 1 10
41 AT1938  F - Expensive Expense 1 / 2 10
42 AT1939  G - 222 6 / 13 8
44 AT1940  H - Beautiful Binary Tree 1 / 10 10
45 AT1941  A - Exact Price 9 / 33 7
46 AT1942  B - String Shifting 9 / 11 8
48 AT1943  C - Doukasen 8 / 47 8
49 AT1944  D - Restricted Permutation 0 / 0 (无)
50 AT1945  E - Placing Rectangles 1 / 1 10
51 AT1946  F - Parenthesis Checking 1 / 1 10
52 AT1947  G - Vertex Deletion 1 / 1 10
53 AT1948  H - Xor Query 1 / 3 10
54 AT1949  A - Tires 8 / 10 9
56 AT1950  B - Mongeness 8 / 35 7
59 AT1952  D - 8 Puzzle on Graph 5 / 26 8
60 AT1953  E - Integers on Grid 1 / 1 10
61 AT1954  F - Problem where +s Separate Digits 1 / 1 10
62 AT1955  G - Roll or Increment 1 / 2 10
63 AT1956  H - Security Camera 2 0 / 1 10
64 AT1957  A - Distinct Strings 8 / 18 7
65 AT1958  B - Star or Not 8 / 19 7
66 AT1959  C - Calendar Validator 8 / 29 7

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