题库 - combinatorics - HydroOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	1405	P1276B Two Fairs combinatorics dfs and similar dsu graphs *1900	0 / 1	6
	1404	P1276C Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math *2300	0 / 0	8
	1392	P1278F Cards combinatorics dp math number theory probabilities *2600	0 / 0	10
	1388	P1279D Santa's Bot combinatorics math probabilities *1700	0 / 0	5
	1387	P1279E New Year Permutations combinatorics dp *2700	0 / 1	10
	1380	P1280F Intergalactic Sliding Puzzle combinatorics constructive algorithms math *3400	0 / 0	10
	1364	P1284B New Year and Ascent Sequence binary search combinatorics data structures dp implementation sortings *1400	0 / 0	4
	1362	P1284C New Year and Permutation combinatorics math *1600	0 / 0	5
	1361	P1284E New Year and Castle Construction combinatorics geometry math sortings *2500	0 / 0	9
	1353	P1285F Classical? binary search combinatorics number theory *2900	0 / 0	10
	1341	P1288C Two Arrays combinatorics dp *1600	1 / 1	5
	1326	P1292C Xenon's Attack on the Gangs combinatorics dfs and similar dp greedy trees *2300	0 / 0	8
	1323	P1292F Nora's Toy Boxes bitmasks combinatorics dp *3500	1 / 1	10
	1321	P1293B JOE is on TV! combinatorics greedy math *1000	0 / 0	3
	1309	P1295F Good Contest combinatorics dp probabilities *2700	0 / 0	10
	1288	P1299D Around the World bitmasks combinatorics dfs and similar dp graphs graphs math trees *3000	0 / 0	10
	1282	P1301C Ayoub's function binary search combinatorics greedy math strings *1700	1 / 1	5
	1252	P1305C Kuroni and Impossible Calculation brute force combinatorics math number theory *1600	1 / 1	5
	1242	P1307E Cow and Treats binary search combinatorics dp greedy implementation math *2500	0 / 0	9
	1223	P1312D Count the Arrays combinatorics math *1700	0 / 0	5
	1175	P1326C Permutation Partitions combinatorics greedy math *1300	0 / 0	4
	1164	P1327E Count The Blocks combinatorics dp math *1800	0 / 0	6
	1163	P1327F AND Segments bitmasks combinatorics data structures dp two pointers *2500	1 / 1	9
	1160	P1328B K-th Beautiful String binary search brute force combinatorics implementation math *1300	0 / 0	4
	1154	P1329B Dreamoon Likes Sequences bitmasks combinatorics math *1700	0 / 0	5
	1135	P1332E Height All the Same combinatorics constructive algorithms math matrices *2100	0 / 0	7
	1123	P1334E Divisor Paths combinatorics graphs greedy math number theory *2200	1 / 2	8
	1109	P1336E1 Chiori and Doll Picking (easy version) bitmasks brute force combinatorics math *2700	0 / 0	10
	1108	P1336E2 Chiori and Doll Picking (hard version) bitmasks brute force combinatorics math *3500	0 / 0	10
	1084	P1342E Placing Rooks combinatorics fft math *2300	1 / 8	8
	977	P1359E Modular Stability combinatorics math number theory *2000	0 / 0	7
	941	P1365G Secure Password bitmasks combinatorics constructive algorithms interactive math *2800	2 / 2	10
	936	P1366E Two Arrays binary search brute force combinatorics constructive algorithms dp two pointers *2100	0 / 0	7
	900	P1371E1 Asterism (Easy Version) binary search brute force combinatorics math number theory sortings *1900	0 / 0	6
	899	P1371E2 Asterism (Hard Version) binary search combinatorics dp math number theory sortings *2300	0 / 0	8
	842	P1383E Strange Operation combinatorics data structures dp *2800	1 / 1	10
	809	P1391C Cyclic Permutations combinatorics dp graphs math *1500	0 / 0	5
	799	P1392H ZS Shuffles Cards combinatorics dp math probabilities *3000	0 / 0	10
	759	P1400D Zigzags brute force combinatorics data structures math two pointers *1900	1 / 1	6
	756	P1400G Mercenaries bitmasks brute force combinatorics dp dsu math two pointers *2600	0 / 0	10
	747	P1402C Star Trek special problem combinatorics dfs and similar dp games graphs matrices trees 2600	0 / 0	10
	744	P1403C Chess Rush special problem combinatorics dp implementation math 3200	0 / 0	10
	720	P1408G Clusterization Counting combinatorics dp dsu fft graphs trees *2700	0 / 0	10
	680	P1418E Expected Damage binary search combinatorics probabilities *2400	0 / 0	9
	666	P1420D Rescue Nibel! combinatorics data structures sortings *1800	0 / 0	6
	657	P1422C Bargain combinatorics dp math *1700	0 / 0	5
	634	P1425D Danger of Mad Snakes combinatorics dp math *2300	0 / 0	8
	624	P1426F Number of Subsequences combinatorics dp strings *2000	0 / 0	7
	585	P1433E Two Round Dances combinatorics math *1300	0 / 0	4
	579	P1436C Binary Search binary search combinatorics *1500	0 / 0	5

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