Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2156	codeforces#P1510K King's Task brute force graphs implementation *1200	0 / 0	4
	2155	codeforces#P1511A Review Site greedy *800	0 / 0	3
	2154	codeforces#P1511B GCD Length constructive algorithms math number theory *1100	0 / 0	3
	2153	codeforces#P1511C Yet Another Card Deck brute force data structures implementation trees *1100	0 / 0	3
	2152	codeforces#P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	5
	2151	codeforces#P1511E Colorings and Dominoes combinatorics dp greedy math *2100	0 / 0	7
	2150	codeforces#P1511F Chainword brute force data structures dp matrices string suffix structures strings *2700	0 / 0	10
	2149	codeforces#P1511G Chips on a Board bitmasks brute force data structures dp games two pointers *2700	0 / 0	10
	2148	codeforces#P1512A Spy Detected! brute force implementation *800	0 / 0	3
	2147	codeforces#P1512B Almost Rectangle implementation *800	0 / 0	3
	2146	codeforces#P1512C A-B Palindrome constructive algorithms implementation strings *1200	0 / 0	4
	2145	codeforces#P1512D Corrupted Array constructive algorithms data structures greedy *1200	0 / 0	4
	2144	codeforces#P1512E Permutation by Sum brute force greedy math *1600	0 / 0	5
	2143	codeforces#P1512F Education brute force dp greedy implementation *1900	0 / 0	6
	2142	codeforces#P1512G Short Task brute force dp math number theory *1700	0 / 0	5
	2141	codeforces#P1513A Array and Peaks constructive algorithms implementation *800	0 / 0	3
	2140	codeforces#P1513B AND Sequences bitmasks combinatorics constructive algorithms math *1400	0 / 0	4
	2139	codeforces#P1513C Add One dp matrices *1600	0 / 0	5
	2138	codeforces#P1513D GCD and MST constructive algorithms dsu graphs greedy number theory sortings *2000	0 / 0	7
	2137	codeforces#P1513E Cost Equilibrium combinatorics constructive algorithms math sortings *2300	0 / 0	8
	2136	codeforces#P1513F Swapping Problem brute force constructive algorithms data structures sortings *2500	0 / 0	9
	2135	codeforces#P1514A Perfectly Imperfect Array math number theory *800	0 / 0	3
	2134	codeforces#P1514B AND 0, Sum Big bitmasks combinatorics math *1200	0 / 0	4
	2133	codeforces#P1514C Product 1 Modulo N greedy number theory *1600	0 / 0	5
	2132	codeforces#P1514D Cut and Stick binary search data structures greedy implementation sortings *2000	0 / 0	7
	2131	codeforces#P1514E Baby Ehab's Hyper Apartment binary search graphs interactive sortings two pointers *2700	0 / 0	10
	2130	codeforces#P1515A Phoenix and Gold constructive algorithms greedy math *800	0 / 0	3
	2129	codeforces#P1515B Phoenix and Puzzle brute force geometry math number theory *1000	0 / 0	3
	2128	codeforces#P1515C Phoenix and Towers constructive algorithms data structures greedy *1400	0 / 0	4
	2127	codeforces#P1515D Phoenix and Socks greedy sortings two pointers *1500	0 / 0	5
	2126	codeforces#P1515E Phoenix and Computers combinatorics dp math *2200	0 / 0	8
	2125	codeforces#P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	10
	2124	codeforces#P1515G Phoenix and Odometers dfs and similar graphs math number theory *2700	0 / 0	10
	2123	codeforces#P1515H Phoenix and Bits bitmasks brute force data structures sortings *3500	0 / 0	10
	2122	codeforces#P1515I Phoenix and Diamonds binary search data structures sortings *3400	0 / 0	10
	2121	codeforces#P1516A Tit for Tat greedy *800	0 / 0	3
	2120	codeforces#P1516B AGAGA XOOORRR bitmasks brute force dp greedy *1500	0 / 0	5
	2119	codeforces#P1516C Baby Ehab Partitions Again bitmasks constructive algorithms dp math *1700	0 / 0	5
	2118	codeforces#P1516D Cut binary search data structures dp graphs number theory two pointers *2100	0 / 0	7
	2117	codeforces#P1516E Baby Ehab Plays with Permutations combinatorics dp math *2500	0 / 0	9
	2116	codeforces#P1517A Sum of 2050 greedy math *800	0 / 0	3
	2115	codeforces#P1517B Morning Jogging constructive algorithms greedy sortings *1200	0 / 0	4
	2114	codeforces#P1517C Fillomino 2 constructive algorithms dfs and similar greedy implementation *1400	0 / 0	4
	2113	codeforces#P1517D Explorer Space dp graphs shortest paths *1800	0 / 0	6
	2112	codeforces#P1517E Group Photo binary search data structures implementation two pointers *2500	0 / 0	9
	2111	codeforces#P1517F Reunion combinatorics dp trees *3200	0 / 0	10
	2110	codeforces#P1517G Starry Night Camping constructive algorithms flows graphs *3300	0 / 0	10
	2109	codeforces#P1517H Fly Around the World dp geometry *3500	0 / 0	10
	2108	codeforces#P1519A Red and Blue Beans math *800	0 / 0	3
	2107	codeforces#P1519B The Cake Is a Lie dp math *800	0 / 0	3
	2106	codeforces#P1519C Berland Regional brute force data structures greedy number theory sortings *1400	0 / 0	4
	2105	codeforces#P1519D Maximum Sum of Products brute force dp implementation math two pointers *1600	0 / 0	5
	2104	codeforces#P1519E Off by One constructive algorithms dfs and similar geometry graphs sortings trees *2700	0 / 0	10
	2103	codeforces#P1519F Chests and Keys bitmasks brute force dfs and similar dp flows *3200	0 / 0	10
	2102	codeforces#P1520A Do Not Be Distracted! brute force implementation *800	0 / 0	3
	2101	codeforces#P1520B Ordinary Numbers brute force math number theory *800	0 / 0	3
	2100	codeforces#P1520C Not Adjacent Matrix constructive algorithms *1000	0 / 0	3
	2099	codeforces#P1520D Same Differences data structures hashing math *1200	0 / 0	4
	2098	codeforces#P1520E Arranging The Sheep greedy math *1400	0 / 0	4
	2097	codeforces#P1520F1 Guess the K-th Zero (Easy version) binary search interactive *1600	0 / 0	5
	2096	codeforces#P1520F2 Guess the K-th Zero (Hard version) binary search constructive algorithms data structures interactive *2200	0 / 0	8
	2095	codeforces#P1520G To Go Or Not To Go? brute force dfs and similar graphs greedy implementation shortest paths *2200	0 / 0	8
	2094	codeforces#P1521A Nastia and Nearly Good Numbers constructive algorithms math number theory *1000	0 / 0	3
	2093	codeforces#P1521B Nastia and a Good Array constructive algorithms math number theory *1300	0 / 0	4
	2092	codeforces#P1521C Nastia and a Hidden Permutation constructive algorithms interactive *2000	0 / 0	7
	2091	codeforces#P1521D Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp dsu greedy implementation trees *2500	0 / 0	9
	2090	codeforces#P1521E Nastia and a Beautiful Matrix binary search constructive algorithms dp greedy *2700	0 / 0	10
	2089	codeforces#P1523A Game of Life implementation *800	0 / 0	3
	2088	codeforces#P1523B Lord of the Values constructive algorithms *1100	0 / 0	3
	2087	codeforces#P1523C Compression and Expansion brute force data structures greedy implementation trees *1600	0 / 0	5
	2086	codeforces#P1523D Love-Hate bitmasks brute force dp probabilities *2400	0 / 0	9
	2085	codeforces#P1523E Crypto Lights combinatorics dp math probabilities *2600	0 / 0	10
	2084	codeforces#P1523F Favorite Game bitmasks dp *3300	0 / 0	10
	2083	codeforces#P1523G Try Booking data structures divide and conquer *3200	0 / 0	10
	2082	codeforces#P1523H Hopping Around the Array data structures dp *3500	0 / 0	10
	2081	codeforces#P1525A Potion-making math number theory *800	0 / 0	3
	2080	codeforces#P1525B Permutation Sort constructive algorithms greedy *900	0 / 0	3
	2079	codeforces#P1525C Robot Collisions data structures greedy implementation sortings *2000	0 / 0	7
	2078	codeforces#P1525D Armchairs dp flows graph matchings greedy *1800	0 / 0	6
	2077	codeforces#P1525E Assimilation IV combinatorics dp math probabilities two pointers *2100	0 / 0	7
	2076	codeforces#P1525F Goblins And Gnomes brute force dp flows graph matchings *2800	0 / 0	10
	2075	codeforces#P1526A Mean Inequality constructive algorithms sortings *800	0 / 0	3
	2074	codeforces#P1526B I Hate 1111 dp math number theory *1400	0 / 0	4
	2073	codeforces#P1526C1 Potions (Easy Version) brute force data structures dp greedy *1500	0 / 0	5
	2072	codeforces#P1526C2 Potions (Hard Version) data structures greedy *1600	0 / 0	5
	2071	codeforces#P1526D Kill Anton brute force constructive algorithms data structures math strings *2200	0 / 0	8
	2070	codeforces#P1526E Oolimry and Suffix Array combinatorics constructive algorithms math *2400	0 / 0	9
	2069	codeforces#P1526F Median Queries constructive algorithms interactive probabilities *3000	0 / 0	10
	2068	codeforces#P1527A And Then There Were K bitmasks *800	0 / 0	3
	2067	codeforces#P1527B1 Palindrome Game (easy version) constructive algorithms games *1200	0 / 0	4
	2066	codeforces#P1527B2 Palindrome Game (hard version) constructive algorithms games *1900	0 / 0	6
	2065	codeforces#P1527C Sequence Pair Weight hashing implementation math *1600	0 / 0	5
	2064	codeforces#P1527D MEX Tree combinatorics dfs and similar implementation math trees *2400	0 / 0	9
	2063	codeforces#P1527E Partition Game binary search data structures divide and conquer dp *2500	0 / 0	9
	2062	codeforces#P1528A Parsa's Humongous Tree dfs and similar divide and conquer dp greedy trees *1600	0 / 0	5
	2061	codeforces#P1528B Kavi on Pairing Duty combinatorics dp math *1700	0 / 0	5
	2060	codeforces#P1528C Trees of Tranquillity data structures dfs and similar greedy trees *2300	0 / 0	8
	2059	codeforces#P1528D It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms graphs shortest paths *2500	0 / 0	9
	2058	codeforces#P1528E Mashtali and Hagh Trees combinatorics dp trees *2900	0 / 0	10
	2057	codeforces#P1528F AmShZ Farm combinatorics fft math *3300	0 / 0	10

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