Problem Set - 算道OJ

ID	Problem Show tags Hide tags	AC / Tried	Difficulty
2918	CF1473C No More Inversions constructive algorithms math *1500	0 / 0	(None)
2917	CF1473D Program data structures dp implementation strings *1700	0 / 0	(None)
2916	CF1473E Minimum Path graphs shortest paths *2400	0 / 0	(None)
2915	CF1473F Strange Set flows math *2700	0 / 0	(None)
2914	CF1473G Tiles combinatorics dp fft math *2800	0 / 0	(None)
2912	CF1474A Puzzle From the Future greedy *800	0 / 0	(None)
2911	CF1474B Different Divisors binary search constructive algorithms greedy math number theory *1000	0 / 0	(None)
2910	CF1474C Array Destruction brute force constructive algorithms data structures greedy implementation sortings *1700	0 / 0	(None)
2909	CF1474D Cleaning data structures dp greedy math *2200	0 / 0	(None)
2908	CF1474E What Is It? constructive algorithms greedy *2500	0 / 0	(None)
2907	CF1474F 1 2 3 4 ... dp math matrices *3000	0 / 0	(None)
2906	CF1475A Odd Divisor math number theory *900	0 / 0	(None)
2905	CF1475B New Year's Number brute force dp math *900	0 / 0	(None)
2904	CF1475C Ball in Berland combinatorics graphs math *1400	0 / 0	(None)
2903	CF1475D Cleaning the Phone binary search dp sortings two pointers *1800	0 / 0	(None)
2901	CF1475E Advertising Agency combinatorics math sortings *1600	0 / 0	(None)
2900	CF1475F Unusual Matrix 2-sat brute force constructive algorithms *1900	0 / 0	(None)
2899	CF1475G Strange Beauty dp math number theory sortings *1900	0 / 0	(None)
2898	CF1476A K-divisible Sum binary search constructive algorithms greedy math *1000	0 / 0	(None)
2897	CF1476B Inflation binary search brute force greedy math *1300	0 / 0	(None)
2896	CF1476C Longest Simple Cycle dp graphs greedy *1600	0 / 0	(None)
2895	CF1476D Journey dfs and similar dp dsu implementation *1700	0 / 0	(None)
2894	CF1476E Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings *2300	0 / 0	(None)
2893	CF1476F Lanterns binary search data structures dp *3000	0 / 0	(None)
2892	CF1476G Minimum Difference data structures hashing sortings two pointers *3100	0 / 0	(None)
2890	CF1477A Nezzar and Board constructive algorithms math number theory *1800	0 / 0	(None)
2889	CF1477B Nezzar and Binary String data structures greedy *1900	0 / 0	(None)
2888	CF1477C Nezzar and Nice Beatmap constructive algorithms geometry greedy math sortings *2200	0 / 0	(None)
2887	CF1477D Nezzar and Hidden Permutations constructive algorithms dfs and similar graphs *2800	0 / 0	(None)
2886	CF1477E Nezzar and Tournaments data structures greedy *3300	0 / 0	(None)
2885	CF1477F Nezzar and Chocolate Bars combinatorics fft math probabilities *3500	0 / 0	(None)
2884	CF1478A Nezzar and Colorful Balls brute force greedy *800	0 / 0	(None)
2883	CF1478B Nezzar and Lucky Number brute force dp greedy math *1100	0 / 0	(None)
2882	CF1478C Nezzar and Symmetric Array implementation math sortings *1700	0 / 0	(None)
2881	CF1479A Searching Local Minimum binary search interactive ternary search *1700	0 / 0	(None)
2879	CF1479B1 Painting the Array I constructive algorithms data structures dp greedy implementation *1900	0 / 0	(None)
2878	CF1479B2 Painting the Array II constructive algorithms data structures dp greedy implementation *2100	0 / 0	(None)
2877	CF1479C Continuous City bitmasks constructive algorithms *2500	0 / 0	(None)
2876	CF1479D Odd Mineral Resource binary search bitmasks brute force data structures probabilities trees *2900	0 / 0	(None)
2875	CF1479E School Clubs dp fft math number theory probabilities *3500	0 / 0	(None)
2874	CF1480A Yet Another String Game games greedy strings *800	0 / 0	(None)
2873	CF1480B The Great Hero greedy implementation sortings *900	0 / 0	(None)
2872	CF1481A Space Navigation greedy strings *800	0 / 0	(None)
2871	CF1481B New Colony brute force greedy implementation *1100	0 / 0	(None)
2870	CF1481C Fence Painting brute force constructive algorithms greedy *1600	0 / 0	(None)
2868	CF1481D AB Graph brute force constructive algorithms graphs greedy implementation *2000	0 / 0	(None)
2867	CF1481E Sorting Books data structures dp greedy *2500	0 / 0	(None)
2866	CF1481F AB Tree dp greedy trees *3100	0 / 0	(None)
2865	CF1482A Prison Break math *800	0 / 0	(None)
2864	CF1482B Restore Modulo implementation math *1500	0 / 0	(None)
2863	CF1482C Basic Diplomacy brute force constructive algorithms greedy implementation *1600	0 / 0	(None)
2862	CF1482D Playlist data structures dsu implementation shortest paths *1900	0 / 0	(None)
2861	CF1482E Skyline Photo data structures divide and conquer dp *2100	0 / 0	(None)
2860	CF1482F Useful Edges graphs shortest paths *2400	0 / 0	(None)
2859	CF1482G Vabank binary search interactive *3200	0 / 0	(None)
2856	CF1482H Exam data structures string suffix structures trees *3400	0 / 0	(None)
2855	CF1485A Add and Divide brute force greedy math number theory *1000	0 / 0	(None)
2854	CF1485B Replace and Keep Sorted dp implementation math *1200	0 / 0	(None)
2853	CF1485C Floor and Mod binary search brute force math number theory *1700	0 / 0	(None)
2852	CF1485D Multiples and Power Differences constructive algorithms graphs math number theory *2200	0 / 0	(None)
2851	CF1485E Move and Swap dfs and similar dp greedy trees *2500	0 / 0	(None)
2850	CF1485F Copy or Prefix Sum combinatorics data structures dp sortings *2400	0 / 0	(None)
2849	CF1486A Shifting Stacks greedy implementation *900	0 / 0	(None)
2848	CF1486B Eastern Exhibition binary search geometry shortest paths sortings *1500	0 / 0	(None)
2847	CF1486C1 Guessing the Greatest (easy version) binary search interactive *1600	0 / 0	(None)
2845	CF1486C2 Guessing the Greatest (hard version) binary search interactive *1900	0 / 0	(None)
2844	CF1486D Max Median binary search data structures dp *2100	0 / 0	(None)
2843	CF1486E Paired Payment binary search brute force constructive algorithms dp flows graphs shortest paths *2200	0 / 0	(None)
2842	CF1486F Pairs of Paths combinatorics data structures dfs and similar dp trees *2600	0 / 0	(None)
2841	CF1487A Arena implementation sortings *800	0 / 0	(None)
2840	CF1487B Cat Cycle math number theory *1200	0 / 0	(None)
2839	CF1487C Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math *1500	0 / 0	(None)
2838	CF1487D Pythagorean Triples binary search brute force math number theory *1500	0 / 0	(None)
2837	CF1487E Cheap Dinner brute force data structures graphs greedy implementation sortings two pointers *2000	0 / 0	(None)
2836	CF1487F Ones dp greedy shortest paths *2900	0 / 0	(None)
2834	CF1487G String Counting combinatorics dp fft math *2700	0 / 0	(None)
2833	CF1488A From Zero To Y special problem math 900	0 / 0	(None)
2832	CF1488B RBS Deletion special problem greedy 1800	0 / 0	(None)
2831	CF1488C Two Policemen special problem binary search brute force math 1900	0 / 0	(None)
2830	CF1488D Problemsolving Marathon special problem binary search greedy 1900	0 / 0	(None)
2829	CF1488E Palindromic Doubles special problem data structures dp 2200	0 / 0	(None)
2828	CF1488F Dogecoin special problem special problem binary search data structures *2300	0 / 0	(None)
2827	CF1488G Painting Numbers special problem data structures greedy number theory 2500	0 / 0	(None)
2826	CF1488H Build From Suffixes special problem combinatorics data structures 2800	0 / 0	(None)
2825	CF1488I Demonic Invasion special problem flows 3100	0 / 0	(None)
2823	CF1488J Flower Shop special problem data structures fft math 3100	0 / 0	(None)
2822	CF1490A Dense Array greedy math *800	0 / 0	(None)
2821	CF1490B Balanced Remainders brute force constructive algorithms math *1000	0 / 0	(None)
2820	CF1490C Sum of Cubes binary search brute force brute force math *1100	0 / 0	(None)
2819	CF1490D Permutation Transformation dfs and similar divide and conquer implementation *1200	0 / 0	(None)
2818	CF1490E Accidental Victory binary search data structures greedy *1400	0 / 0	(None)
2817	CF1490F Equalize the Array binary search data structures greedy math sortings *1500	0 / 0	(None)
2816	CF1490G Old Floppy Drive binary search data structures math *1900	0 / 0	(None)
2815	CF1491A K-th Largest Value brute force greedy implementation *800	0 / 0	(None)
2814	CF1491B Minimal Cost brute force math *1200	0 / 0	(None)
2812	CF1491C Pekora and Trampoline brute force data structures dp greedy implementation *1700	0 / 0	(None)
2811	CF1491D Zookeeper and The Infinite Zoo bitmasks constructive algorithms dp greedy math *1800	0 / 0	(None)
2810	CF1491E Fib-tree brute force dfs and similar divide and conquer number theory trees *2400	0 / 0	(None)
2809	CF1491F Magnets binary search constructive algorithms interactive *2700	0 / 0	(None)
2808	CF1491G Switch and Flip constructive algorithms graphs math *2800	0 / 0	(None)

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