Problem Set - math - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	1430	codeforces#P1648A Weird Sum combinatorics data structures geometry math matrices sortings *1400	0 / 0	4
	1429	codeforces#P1648B Integral Array brute force constructive algorithms data structures math *1800	0 / 0	6
	1421	codeforces#P1650B DIV + MOD math *900	0 / 0	3
	1419	codeforces#P1650D Twist the Permutation brute force constructive algorithms implementation math *1300	0 / 0	4
	1418	codeforces#P1650E Rescheduling the Exam binary search data structures greedy implementation math sortings *1900	0 / 0	6
	1411	codeforces#P1651E Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math *2600	0 / 0	10
	1406	codeforces#P1654D Potion Brewing Class dfs and similar math number theory trees *2100	0 / 0	7
	1405	codeforces#P1654E Arithmetic Operations brute force data structures graphs math *2300	0 / 0	8
	1402	codeforces#P1654H Three Minimums combinatorics constructive algorithms divide and conquer dp fft math *3500	0 / 0	10
	1401	codeforces#P1656A Good Pairs math sortings *800	0 / 0	3
	1400	codeforces#P1656B Subtract Operation data structures greedy math two pointers *1100	0 / 0	3
	1399	codeforces#P1656C Make Equal With Mod constructive algorithms math number theory sortings *1200	0 / 0	4
	1398	codeforces#P1656D K-good constructive algorithms math number theory *1900	0 / 0	6
	1397	codeforces#P1656E Equal Tree Sums constructive algorithms dfs and similar math trees *2200	0 / 0	8
	1396	codeforces#P1656F Parametric MST binary search constructive algorithms graphs greedy math sortings *2600	0 / 0	10
	1395	codeforces#P1656G Cycle Palindrome constructive algorithms graphs math *3200	0 / 0	10
	1394	codeforces#P1656H Equal LCM Subsets data structures math number theory *3200	0 / 0	10
	1392	codeforces#P1657A Integer Moves brute force math *800	0 / 0	3
	1389	codeforces#P1657D For Gamers binary search brute force greedy math sortings *2000	0 / 0	7
	1388	codeforces#P1657E Star MST combinatorics dp graph matchings math *2200	0 / 0	8
	1386	codeforces#P1658A Marin and Photoshoot constructive algorithms implementation math *800	0 / 0	3
	1385	codeforces#P1658B Marin and Anti-coprime Permutation combinatorics math number theory *800	0 / 0	3
	1384	codeforces#P1658C Shinju and the Lost Permutation constructive algorithms math *1700	0 / 0	5
	1383	codeforces#P1658D1 388535 (Easy Version) bitmasks math *1600	0 / 0	5
	1382	codeforces#P1658D2 388535 (Hard Version) bitmasks brute force data structures math *2300	0 / 0	8
	1381	codeforces#P1658E Gojou and Matrix Game data structures dp games hashing implementation math number theory sortings *2500	0 / 0	9
	1380	codeforces#P1658F Juju and Binary String brute force constructive algorithms greedy math *2700	0 / 0	10
	1379	codeforces#P1659A Red Versus Blue constructive algorithms greedy implementation math *1000	0 / 0	3
	1377	codeforces#P1659C Line Empire binary search brute force dp greedy implementation math *1500	0 / 0	5
	1376	codeforces#P1659D Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers *1900	0 / 0	6
	1373	codeforces#P1660A Vasya and Coins greedy math *800	0 / 0	3
	1372	codeforces#P1660B Vlad and Candies math *800	0 / 0	3
	1370	codeforces#P1660D Maximum Product Strikes Back brute force implementation math two pointers *1600	0 / 0	5
	1368	codeforces#P1660F1 Promising String (easy version) brute force implementation math strings *1700	0 / 0	5
	1367	codeforces#P1660F2 Promising String (hard version) data structures implementation math strings *2100	0 / 0	7
	1366	codeforces#P1661A Array Balancing greedy math *800	0 / 0	3
	1364	codeforces#P1661C Water the Trees binary search greedy math *1700	0 / 0	5
	1362	codeforces#P1661E Narrow Components brute force data structures dp dsu math trees *2500	0 / 0	9
	1358	codeforces#P1662C European Trip dp graphs math matrices	0 / 0	(None)
	1356	codeforces#P1662E Round Table math	0 / 0	(None)
	1353	codeforces#P1662H Boundary brute force math	0 / 0	(None)
	1349	codeforces#P1662L Il Derby della Madonnina data structures dp math	0 / 0	(None)
	1347	codeforces#P1662N Drone Photo combinatorics math sortings	0 / 0	(None)
	1344	codeforces#P1663B Mike's Sequence *special problem divide and conquer implementation math	0 / 0	(None)
	1343	codeforces#P1663C Pōja Verdon *special problem implementation math	0 / 0	(None)
	1342	codeforces#P1663D Is it rated - 3 *special problem combinatorics dp math	0 / 0	(None)
	1337	codeforces#P1665A GCD vs LCM constructive algorithms math *800	0 / 0	3
	1334	codeforces#P1665D GCD Guess bitmasks chinese remainder theorem constructive algorithms games interactive math number theory *2000	0 / 0	7
	1328	codeforces#P1666E Even Split binary search constructive algorithms greedy math *2500	0 / 0	9
	1324	codeforces#P1666I Interactive Treasure Hunt brute force constructive algorithms geometry interactive math *2200	0 / 0	8
	1320	codeforces#P1667A Make it Increasing brute force greedy math *1300	0 / 0	4
	1318	codeforces#P1667C Half Queen Cover constructive algorithms math *2400	0 / 0	9
	1316	codeforces#P1667E Centroid Probabilities combinatorics dp fft math *3000	0 / 0	10
	1314	codeforces#P1668A Direction Change implementation math *800	0 / 0	3
	1313	codeforces#P1668B Social Distance greedy math sortings *900	0 / 0	3
	1310	codeforces#P1669C Odd/Even Increments greedy greedy implementation math *800	0 / 0	3
	1308	codeforces#P1669E 2-Letter Strings data structures math strings *1200	0 / 0	4
	1305	codeforces#P1669H Maximal AND bitmasks greedy math *1300	0 / 0	4
	1302	codeforces#P1670C Where is the Pizza? data structures dfs and similar dsu graphs implementation math *1400	0 / 0	4
	1301	codeforces#P1670D Very Suspicious binary search brute force geometry greedy implementation math *1700	0 / 0	5
	1297	codeforces#P1671B Consecutive Points Segment brute force math sortings *1000	0 / 0	3
	1296	codeforces#P1671C Dolce Vita binary search brute force greedy math *1200	0 / 0	4
	1293	codeforces#P1671F Permutation Counting brute force combinatorics dp fft math *2700	0 / 0	10
	1292	codeforces#P1672A Log Chopping games implementation math *800	0 / 0	3
	1285	codeforces#P1672G Cross Xor constructive algorithms graphs math matrices *3200	0 / 0	10
	1280	codeforces#P1673C Palindrome Basis brute force dp math number theory *1500	0 / 0	5
	1279	codeforces#P1673D Lost Arithmetic Progression combinatorics math number theory *1900	0 / 0	6
	1278	codeforces#P1673E Power or XOR? bitmasks combinatorics math number theory *2500	0 / 0	9
	1277	codeforces#P1673F Anti-Theft Road Planning bitmasks constructive algorithms divide and conquer greedy interactive math *2400	0 / 0	9
	1276	codeforces#P1674A Number Transformation constructive algorithms math *800	0 / 0	3
	1275	codeforces#P1674B Dictionary combinatorics math *800	0 / 0	3
	1272	codeforces#P1674E Breaking the Wall binary search brute force constructive algorithms greedy math *2000	0 / 0	7
	1269	codeforces#P1675A Food for Animals greedy math *800	0 / 0	3
	1261	codeforces#P1676B Equal Candies greedy math sortings *800	0 / 0	3
	1260	codeforces#P1676C Most Similar Words brute force greedy implementation implementation math strings *800	0 / 0	3
	1252	codeforces#P1677B Tokitsukaze and Meeting data structures implementation math *1700	0 / 0	5
	1250	codeforces#P1677D Tokitsukaze and Permutations dp math *2500	0 / 0	9
	1248	codeforces#P1677F Tokitsukaze and Gems dp math *3500	0 / 0	10
	1244	codeforces#P1679A AvtoBus brute force greedy math number theory *900	0 / 0	3
	1239	codeforces#P1679F Formalism for Formalism bitmasks dp math *2600	0 / 0	10
	1238	codeforces#P1680A Minimums and Maximums brute force math *800	0 / 0	3
	1235	codeforces#P1680D Dog Walking brute force greedy math *2400	0 / 0	9
	1231	codeforces#P1681B Card Trick implementation math *800	0 / 0	3
	1224	codeforces#P1682C LIS or Reverse LIS? constructive algorithms greedy implementation math *1400	0 / 0	4
	1222	codeforces#P1682E Unordered Swaps constructive algorithms dfs and similar graphs greedy math sortings trees *2700	0 / 0	10
	1220	codeforces#P1684A Digit Minimization constructive algorithms games math strings *800	0 / 0	3
	1219	codeforces#P1684B Z mod X = C constructive algorithms math *800	0 / 0	3
	1214	codeforces#P1684G Euclid Guess constructive algorithms flows graph matchings math number theory *2800	0 / 0	10
	1213	codeforces#P1684H Hard Cut constructive algorithms dfs and similar divide and conquer math *3400	0 / 0	10
	1201	codeforces#P1687D Cute number binary search brute force data structures dsu implementation math *2900	0 / 0	10
	1200	codeforces#P1687E Become Big For Me combinatorics constructive algorithms greedy math number theory *3500	0 / 0	10
	1199	codeforces#P1687F Koishi's Unconscious Permutation fft math *3500	0 / 0	10
	1186	codeforces#P1690E Price Maximization binary search greedy math two pointers *1500	0 / 0	5
	1185	codeforces#P1690F Shifting String graphs math number theory strings *1700	0 / 0	5
	1183	codeforces#P1691A Beat The Odds brute force greedy math *800	0 / 0	3
	1181	codeforces#P1691C Sum of Substrings brute force constructive algorithms greedy math strings *1400	0 / 0	4
	1178	codeforces#P1691F K-Set Tree combinatorics dfs and similar dp math trees *2500	0 / 0	9
	1172	codeforces#P1692F 3SUM brute force math *1300	0 / 0	4
	1170	codeforces#P1692H Gambling data structures dp greedy math *1700	0 / 0	5
	1153	codeforces#P1696C Fishingprince Plays With Array constructive algorithms greedy implementation math *1400	0 / 0	4

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