题库 - HydroOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	9257	P1917A Least Product constructive algorithms math *800	1 / 1	3
	9256	P1917B Erase First or Second Letter brute force combinatorics data structures dp strings *1100	1 / 1	3
	9255	P1917C Watering an Array brute force greedy implementation math *1600	1 / 1	5
	9254	P1917D Yet Another Inversions Problem combinatorics data structures dp implementation math number theory *2300	1 / 2	8
	9253	P1917E Construct Matrix constructive algorithms math *2500	1 / 1	9
	9252	P1917F Construct Tree bitmasks constructive algorithms dp trees *2500	1 / 6	9
	9343	P1918A Brick Wall constructive algorithms greedy implementation math	1 / 1	10
	9342	P1918B Minimize Inversions constructive algorithms data structures greedy implementation sortings	1 / 1	10
	9341	P1918C XOR-distance bitmasks dp greedy implementation math	1 / 1	10
	9340	P1918D Blocking Elements binary search data structures dp implementation two pointers	1 / 1	10
	9339	P1918E ace5 and Task Order binary search divide and conquer implementation interactive probabilities sortings	1 / 1	10
	9338	P1918F Caterpillar on a Tree binary search dfs and similar graphs greedy implementation trees	0 / 0	(无)
	9337	P1918G Permutation of Given brute force constructive algorithms	0 / 0	(无)
	9307	P1919A Wallet Exchange games math *800	1 / 1	3
	9306	P1919B Plus-Minus Split greedy *800	1 / 1	3
	9305	P1919C Grouping Increases data structures dp greedy *1400	2 / 2	4
	9304	P1919D 01 Tree constructive algorithms data structures divide and conquer greedy implementation sortings trees *2100	1 / 2	7
	9303	P1919E Counting Prefixes combinatorics dp math *2600	1 / 7	10
	9302	P1919F1 Wine Factory (Easy Version) data structures *2300	1 / 3	8
	9301	P1919F2 Wine Factory (Hard Version) data structures flows *2800	1 / 2	10
	9300	P1919G Tree LGM constructive algorithms games trees *3500	0 / 0	10
	9299	P1919H Tree Diameter interactive trees *3500	0 / 0	10
	9321	P1920A Satisfying Constraints brute force greedy math *800	1 / 1	3
	9320	P1920B Summation Game games greedy math sortings *1100	1 / 1	3
	9319	P1920C Partitioning the Array brute force math number theory *1500	1 / 2	5
	9318	P1920D Array Repetition binary search brute force implementation math *1800	1 / 2	6
	9317	P1920E Counting Binary Strings 2-sat combinatorics dp math *2100	1 / 1	7
	9316	P1920F1 Smooth Sailing (Easy Version) binary search brute force data structures dfs and similar dsu graphs shortest paths *2500	1 / 1	9
	9315	P1920F2 Smooth Sailing (Hard Version) 2-sat binary search data structures dsu geometry graphs trees *3000	0 / 0	10
	9314	P1921A Square greedy math	1 / 1	10
	9313	P1921B Arranging Cats greedy implementation	1 / 1	10
	9312	P1921C Sending Messages greedy math	1 / 1	10
	9311	P1921D Very Different Array data structures greedy sortings two pointers	1 / 1	10
	9310	P1921E Eat the Chip brute force games greedy	1 / 1	10
	9309	P1921F Sum of Progression brute force data structures implementation math	1 / 1	10
	9308	P1921G Mischievous Shooter data structures divide and conquer dp implementation	0 / 0	(无)
	9327	P1922A Tricky Template constructive algorithms implementation strings	1 / 1	10
	9326	P1922B Forming Triangles combinatorics implementation math	1 / 1	10
	9325	P1922C Closest Cities data structures dp greedy	1 / 1	10
	9324	P1922D Berserk Monsters data structures implementation	0 / 0	(无)
	9323	P1922E Increasing Subsequences bitmasks constructive algorithms divide and conquer dp greedy implementation math	0 / 0	(无)
	9322	P1922F Replace on Segment dp	1 / 1	10
	9399	P1923A Moving Chips greedy implementation	0 / 0	(无)
	9398	P1923B Monsters Attack! dp greedy implementation	0 / 0	(无)
	9397	P1923C Find B constructive algorithms data structures greedy	0 / 0	(无)
	9396	P1923D Slimes binary search constructive algorithms data structures greedy two pointers	0 / 0	(无)
	9395	P1923E Count Paths data structures dfs and similar divide and conquer dp graphs trees	0 / 0	(无)
	9394	P1923F Shrink-Reverse binary search greedy string suffix structures strings	0 / 0	(无)
	9336	P1924A Did We Get Everything Covered? constructive algorithms dp greedy strings	1 / 3	10
	9335	P1924B Space Harbour brute force data structures implementation math	0 / 3	10

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