Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	7957	P262B Roma and Changing Signs greedy *1200	0 / 0	4
	7956	P263A Beautiful Matrix implementation *800	0 / 0	3
	7955	P263B Squares greedy implementation sortings *900	0 / 0	3
	7954	P263C Circle of Numbers brute force dfs and similar implementation *2000	0 / 0	7
	7953	P263D Cycle in Graph dfs and similar graphs *1800	0 / 0	6
	7952	P263E Rhombus brute force data structures dp *2500	0 / 0	9
	7951	P264A Escape from Stones constructive algorithms data structures implementation two pointers *1200	0 / 0	4
	7950	P264B Good Sequences dp number theory *1500	0 / 0	5
	7949	P264C Choosing Balls dp *2000	0 / 0	7
	7948	P264D Colorful Stones dp two pointers *2500	0 / 0	9
	7947	P264E Roadside Trees data structures dp *3000	0 / 0	10
	7946	P265A Colorful Stones (Simplified Edition) implementation *800	0 / 0	3
	7945	P265B Roadside Trees (Simplified Edition) greedy implementation *1000	0 / 0	3
	7944	P266A Stones on the Table implementation *800	0 / 0	3
	7943	P266B Queue at the School constructive algorithms graph matchings implementation shortest paths *800	0 / 0	3
	7942	P266C Below the Diagonal constructive algorithms greedy math *2100	0 / 0	7
	7941	P266D BerDonalds graphs math shortest paths *2400	0 / 0	9
	7940	P266E More Queries to Array... data structures math *2500	0 / 0	9
	7939	P267A Subtractions math number theory *900	0 / 0	3
	7938	P267B Dominoes dfs and similar graphs *2000	0 / 0	7
	7937	P267C Berland Traffic math matrices *2700	0 / 0	10
	7936	P268A Games brute force *800	0 / 0	3
	7935	P268B Buttons implementation math *1000	0 / 0	3
	7934	P268C Beautiful Sets of Points constructive algorithms implementation *1500	0 / 0	5
	7933	P268D Wall Bars dp *2300	0 / 0	8
	7932	P268E Playlist math probabilities sortings *2100	0 / 0	7
	7931	P269A Magical Boxes greedy math *1600	0 / 0	5
	7930	P269B Greenhouse Effect dp *1700	0 / 0	5
	7929	P269C Flawed Flow constructive algorithms flows graphs greedy *2100	0 / 0	7
	7928	P269D Maximum Waterfall data structures dp graphs sortings *2600	0 / 0	10
	7927	P269E String Theory geometry math strings *3100	0 / 0	10
	7926	P270A Fancy Fence geometry implementation math *1100	0 / 0	3
	7925	P270B Multithreading data structures greedy implementation *1400	0 / 0	4
	7924	P271A Beautiful Year brute force *800	0 / 0	3
	7923	P271B Prime Matrix binary search brute force math number theory *1300	0 / 0	4
	7922	P271C Secret constructive algorithms implementation *1500	0 / 0	5
	7921	P271D Good Substrings data structures strings *1800	0 / 0	6
	7920	P271E Three Horses constructive algorithms math number theory *2200	0 / 0	8
	7919	P272A Dima and Friends implementation math *1000	0 / 0	3
	7918	P272B Dima and Sequence implementation math *1400	0 / 0	4
	7917	P272C Dima and Staircase data structures implementation *1500	0 / 0	5
	7916	P272D Dima and Two Sequences combinatorics math sortings *1600	0 / 0	5
	7915	P272E Dima and Horses combinatorics constructive algorithms graphs *2200	0 / 0	8
	7914	P273D Dima and Figure dp *2400	0 / 0	9
	7913	P273E Dima and Game dp games *2600	0 / 0	10
	7912	P274A k-Multiple Free Set binary search greedy sortings *1500	0 / 0	5
	7911	P274B Zero Tree dfs and similar dp greedy trees *1800	0 / 0	6
	7910	P274C The Last Hole! brute force geometry *2600	0 / 0	10
	7909	P274D Lovely Matrix dfs and similar graphs greedy sortings *2200	0 / 0	8
	7908	P274E Mirror Room data structures implementation *3000	0 / 0	10
	7907	P275A Lights Out implementation *900	0 / 0	3
	7906	P275B Convex Shape constructive algorithms implementation *1700	0 / 0	5
	7905	P276A Lunch Rush implementation *900	0 / 0	3
	7904	P276B Little Girl and Game games greedy *1300	0 / 0	4
	7903	P276C Little Girl and Maximum Sum data structures greedy implementation sortings *1500	0 / 0	5
	7902	P276D Little Girl and Maximum XOR bitmasks dp greedy implementation math *1700	0 / 0	5
	7901	P276E Little Girl and Problem on Trees data structures graphs trees *2100	0 / 0	7
	7900	P277A Learning Languages dfs and similar dsu *1400	0 / 0	4
	7899	P277B Set of Points constructive algorithms geometry *2300	0 / 0	8
	7898	P277C Game games implementation *2400	0 / 0	9
	7897	P277D Google Code Jam dp probabilities *2800	0 / 0	10
	7896	P277E Binary Tree on Plane flows trees *2400	0 / 0	9
	7895	P278A Circle Line implementation *800	0 / 0	3
	7894	P278B New Problem brute force strings *1500	0 / 0	5
	7893	P279A Point on Spiral brute force geometry implementation *1400	0 / 0	4
	7892	P279B Books binary search brute force implementation two pointers *1400	0 / 0	4
	7891	P279C Ladder dp implementation two pointers *1700	0 / 0	5
	7890	P279D The Minimum Number of Variables bitmasks dp *2200	0 / 0	8
	7889	P279E Beautiful Decomposition dp games greedy number theory *1900	0 / 0	6
	7888	P280A Rectangle Puzzle geometry *2000	0 / 0	7
	7887	P280B Maximum Xor Secondary data structures implementation two pointers *1800	0 / 0	6
	7886	P280C Game on Tree implementation math probabilities trees *2200	0 / 0	8
	7885	P280D k-Maximum Subsequence Sum data structures flows graphs implementation *2800	0 / 0	10
	7884	P280E Sequence Transformation brute force data structures dp implementation math *3000	0 / 0	10
	7883	P281A Word Capitalization implementation strings *800	0 / 0	3
	7882	P281B Nearest Fraction brute force implementation two pointers *1700	0 / 0	5
	7881	P282A Bit++ implementation *800	0 / 0	3
	7880	P282B Painting Eggs greedy math *1500	0 / 0	5
	7879	P282C XOR and OR constructive algorithms implementation math *1500	0 / 0	5
	7878	P282D Yet Another Number Game dp games *2100	0 / 0	7
	7877	P282E Sausage Maximization bitmasks data structures trees *2200	0 / 0	8
	7876	P283A Cows and Sequence constructive algorithms data structures implementation *1600	0 / 0	5
	7875	P283B Cow Program dfs and similar dp graphs *1700	0 / 0	5
	7874	P283C Coin Troubles dp *2100	0 / 0	7
	7873	P283D Cows and Cool Sequences dp math number theory *2400	0 / 0	9
	7872	P283E Cow Tennis Tournament combinatorics data structures math *2800	0 / 0	10
	7871	P284A Cows and Primitive Roots implementation math number theory *1400	0 / 0	4
	7870	P284B Cows and Poker Game brute force implementation *1000	0 / 0	3
	7869	P285A Slightly Decreasing Permutations greedy implementation *1100	0 / 0	3
	7868	P285B Find Marble implementation *1200	0 / 0	4
	7867	P285C Building Permutation greedy implementation sortings *1200	0 / 0	4
	7866	P285D Permutation Sum bitmasks combinatorics dp implementation meet-in-the-middle *1900	0 / 0	6
	7865	P285E Positions in Permutations combinatorics dp math *2600	0 / 0	10
	7864	P286A Lucky Permutation constructive algorithms math *1400	0 / 0	4
	7863	P286B Shifting implementation *2200	0 / 0	8
	7862	P286C Main Sequence greedy implementation *2100	0 / 0	7
	7861	P286D Tourists data structures sortings *2600	0 / 0	10
	7860	P286E Ladies' Shop constructive algorithms fft math *2800	0 / 0	10
	7859	P287A IQ Test brute force implementation *1100	0 / 0	3
	7858	P287B Pipeline binary search math *1700	0 / 0	5

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