Problem Set - 算道OJ

ID	Problem Show tags Hide tags	AC / Tried	Difficulty
1585	CF1696B NIT Destroys the Universe greedy *900	0 / 0	(None)
1584	CF1696C Fishingprince Plays With Array constructive algorithms greedy implementation math *1400	0 / 0	(None)
1583	CF1696D Permutation Graph binary search constructive algorithms data structures divide and conquer greedy shortest paths *1900	0 / 0	(None)
1582	CF1696E Placing Jinas combinatorics math *2000	0 / 0	(None)
1581	CF1696F Tree Recovery brute force constructive algorithms dfs and similar dsu graphs trees *2600	0 / 0	(None)
1579	CF1696G Fishingprince Plays With Array Again brute force data structures geometry math *3300	0 / 0	(None)
1578	CF1696H Maximum Product? brute force combinatorics dp greedy implementation math two pointers *3500	0 / 0	(None)
1577	CF1697A Parkway Walk greedy implementation *800	0 / 0	(None)
1576	CF1697B Promo greedy sortings *900	0 / 0	(None)
1575	CF1697C awoo's Favorite Problem binary search constructive algorithms data structures greedy implementation strings two pointers *1400	0 / 0	(None)
1574	CF1697D Guess The String binary search constructive algorithms interactive *1900	0 / 0	(None)
1573	CF1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	(None)
1572	CF1697F Too Many Constraints 2-sat constructive algorithms graphs implementation *2800	0 / 0	(None)
1571	CF1698A XOR Mixup bitmasks brute force *800	0 / 0	(None)
1570	CF1698B Rising Sand constructive algorithms greedy implementation *800	0 / 0	(None)
1568	CF1698C 3SUM Closure brute force data structures *1300	0 / 0	(None)
1567	CF1698D Fixed Point Guessing binary search constructive algorithms interactive *1600	0 / 0	(None)
1566	CF1698E PermutationForces II brute force combinatorics greedy sortings trees two pointers *2300	0 / 0	(None)
1565	CF1698F Equal Reversal constructive algorithms graphs implementation math *2800	0 / 0	(None)
1564	CF1698G Long Binary String bitmasks math matrices meet-in-the-middle number theory *2900	0 / 0	(None)
1563	CF1699A The Third Three Number Problem constructive algorithms math *800	0 / 0	(None)
1562	CF1699B Almost Ternary Matrix bitmasks constructive algorithms matrices *900	0 / 0	(None)
1561	CF1699C The Third Problem combinatorics constructive algorithms math *1700	0 / 0	(None)
1560	CF1699D Almost Triple Deletions data structures dp greedy *2300	0 / 0	(None)
1559	CF1699E Three Days Grace data structures dp greedy math number theory two pointers *2600	0 / 0	(None)
1557	CF1700A Optimal Path constructive algorithms greedy math *800	0 / 0	(None)
1556	CF1700B Palindromic Numbers constructive algorithms implementation math *1100	0 / 0	(None)
1555	CF1700C Helping the Nature constructive algorithms data structures greedy *1700	0 / 0	(None)
1554	CF1700D River Locks binary search dp greedy math *1900	0 / 0	(None)
1553	CF1700E Serega the Pirate brute force constructive algorithms *2600	0 / 0	(None)
1552	CF1700F Puzzle constructive algorithms dp greedy *2600	0 / 0	(None)
1551	CF1701A Grass Field implementation *800	0 / 0	(None)
1550	CF1701B Permutation greedy *800	0 / 0	(None)
1549	CF1701C Schedule Management binary search greedy implementation two pointers *1400	0 / 0	(None)
1548	CF1701D Permutation Restoration binary search data structures greedy math sortings two pointers *1900	0 / 0	(None)
1546	CF1701E Text Editor brute force dp greedy strings *2500	0 / 0	(None)
1545	CF1701F Points combinatorics data structures implementation math matrices *2500	0 / 0	(None)
1544	CF1702A Round Down the Price constructive algorithms *800	0 / 0	(None)
1543	CF1702B Polycarp Writes a String from Memory greedy *800	0 / 0	(None)
1542	CF1702C Train and Queries data structures greedy *1100	0 / 0	(None)
1541	CF1702D Not a Cheap String greedy *1000	0 / 0	(None)
1540	CF1702E Split Into Two Sets dfs and similar dsu graphs *1600	0 / 0	(None)
1539	CF1702F Equate Multisets constructive algorithms data structures greedy math number theory *1700	0 / 0	(None)
1538	CF1702G1 Passable Paths (easy version) dfs and similar trees *1900	0 / 0	(None)
1537	CF1702G2 Passable Paths (hard version) data structures dfs and similar trees *2000	0 / 0	(None)
1535	CF1703A YES or YES? brute force implementation strings *800	0 / 0	(None)
1534	CF1703B ICPC Balloons data structures implementation *800	0 / 0	(None)
1533	CF1703C Cypher brute force implementation strings *800	0 / 0	(None)
1532	CF1703D Double Strings brute force data structures strings *1100	0 / 0	(None)
1531	CF1703E Mirror Grid implementation *1200	0 / 0	(None)
1530	CF1703F Yet Another Problem About Pairs Satisfying an Inequality binary search data structures dp greedy sortings *1300	0 / 0	(None)
1529	CF1703G Good Key, Bad Key bitmasks brute force dp greedy math *1600	0 / 0	(None)
1528	CF1704A Two 0-1 Sequences constructive algorithms greedy *800	0 / 0	(None)
1527	CF1704B Luke is a Foodie brute force greedy implementation *1000	0 / 0	(None)
1526	CF1704C Virus greedy implementation sortings *1200	0 / 0	(None)
1523	CF1704D Magical Array constructive algorithms hashing implementation math *1900	0 / 0	(None)
1522	CF1704E Count Seconds brute force constructive algorithms dp graphs implementation math *2200	0 / 0	(None)
1521	CF1704F Colouring Game constructive algorithms dp games *2600	0 / 0	(None)
1520	CF1704G Mio and Lucky Array constructive algorithms fft math strings *3500	0 / 0	(None)
1519	CF1704H1 Game of AI (easy version) combinatorics constructive algorithms dp fft math *3200	0 / 0	(None)
1518	CF1704H2 Game of AI (hard version) combinatorics fft math *3500	0 / 0	(None)
1517	CF1705A Mark the Photographer greedy sortings *800	0 / 0	(None)
1516	CF1705B Mark the Dust Sweeper constructive algorithms greedy implementation *900	0 / 0	(None)
1515	CF1705C Mark and His Unfinished Essay brute force implementation *1400	0 / 0	(None)
1514	CF1705D Mark and Lightbulbs combinatorics constructive algorithms greedy math sortings *1800	0 / 0	(None)
1512	CF1705E Mark and Professor Koro binary search bitmasks brute force combinatorics data structures greedy *2300	0 / 0	(None)
1511	CF1705F Mark and the Online Exam bitmasks constructive algorithms interactive probabilities *2900	0 / 0	(None)
1510	CF1706A Another String Minimization Problem 2-sat constructive algorithms greedy string suffix structures strings *800	0 / 0	(None)
1509	CF1706B Making Towers dp greedy math *1100	0 / 0	(None)
1508	CF1706C Qpwoeirut And The City dp flows greedy implementation *1400	0 / 0	(None)
1507	CF1706D1 Chopping Carrots (Easy Version) binary search brute force constructive algorithms greedy number theory *1700	0 / 0	(None)
1506	CF1706D2 Chopping Carrots (Hard Version) brute force constructive algorithms data structures dp greedy math number theory two pointers *2400	0 / 0	(None)
1505	CF1706E Qpwoeirut and Vertices binary search data structures dfs and similar divide and conquer dsu greedy trees *2300	0 / 0	(None)
1504	CF1707A Doremy's IQ binary search constructive algorithms greedy implementation *1600	0 / 0	(None)
1503	CF1707B Difference Array brute force data structures implementation sortings *1900	0 / 0	(None)
1501	CF1707C DFS Trees dfs and similar dsu graphs greedy sortings trees *2400	0 / 0	(None)
1500	CF1707D Partial Virtual Trees combinatorics dfs and similar dp math trees *3000	0 / 0	(None)
1499	CF1707E Replace binary search data structures *3500	0 / 0	(None)
1498	CF1707F Bugaboo bitmasks constructive algorithms dp number theory *3500	0 / 0	(None)
1497	CF1708A Difference Operations greedy math *800	0 / 0	(None)
1496	CF1708B Difference of GCDs constructive algorithms math *1100	0 / 0	(None)
1495	CF1709A Three Doors brute force greedy implementation math *800	0 / 0	(None)
1494	CF1709B Also Try Minecraft data structures dp implementation *900	0 / 0	(None)
1493	CF1709C Recover an RBS constructive algorithms greedy implementation strings *1800	0 / 0	(None)
1492	CF1709D Rorororobot binary search data structures greedy math *1700	0 / 0	(None)
1490	CF1709E XOR Tree bitmasks data structures dfs and similar dsu greedy trees *2400	0 / 0	(None)
1489	CF1709F Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees *2500	0 / 0	(None)
1488	CF1710A Color the Picture constructive algorithms greedy math *1500	0 / 0	(None)
1487	CF1710B Rain binary search brute force data structures geometry greedy implementation math *2100	0 / 0	(None)
1486	CF1710C XOR Triangle bitmasks brute force constructive algorithms dp greedy math *2500	0 / 0	(None)
1485	CF1710D Recover the Tree constructive algorithms trees *3400	0 / 0	(None)
1484	CF1710E Two Arrays binary search games graph matchings *2400	0 / 0	(None)
1483	CF1711A Perfect Permutation constructive algorithms *800	0 / 0	(None)
1482	CF1711B Party brute force graphs *1300	0 / 0	(None)
1481	CF1712A Wonderful Permutation greedy implementation *800	0 / 0	(None)
1479	CF1712B Woeful Permutation constructive algorithms greedy number theory *800	0 / 0	(None)
1478	CF1712C Sort Zero greedy sortings *1100	0 / 0	(None)
1477	CF1712D Empty Graph binary search constructive algorithms data structures greedy shortest paths *2000	0 / 0	(None)
1476	CF1712E1 LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers *2300	0 / 0	(None)
1475	CF1712E2 LCM Sum (hard version) brute force data structures math number theory two pointers *2500	0 / 0	(None)

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