Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	1556	codeforces#P1622C Set or Decrease binary search brute force greedy sortings *1600	0 / 0	5
	1555	codeforces#P1622D Shuffle combinatorics math two pointers *2000	0 / 0	7
	1554	codeforces#P1622E Math Test bitmasks brute force greedy *2200	0 / 0	8
	1553	codeforces#P1622F Quadratic Set constructive algorithms hashing math number theory *2900	0 / 0	10
	1552	codeforces#P1623A Robot Cleaner brute force implementation math *800	0 / 0	3
	1551	codeforces#P1623B Game on Ranges brute force dfs and similar implementation sortings *1100	0 / 0	3
	1550	codeforces#P1623C Balanced Stone Heaps binary search greedy *1600	0 / 0	5
	1549	codeforces#P1623D Robot Cleaner Revisit implementation math probabilities *2300	0 / 0	8
	1548	codeforces#P1623E Middle Duplication data structures dfs and similar greedy strings trees *2500	0 / 0	9
	1547	codeforces#P1624A Plus One on the Subset math *800	0 / 0	3
	1546	codeforces#P1624B Make AP implementation math *900	0 / 0	3
	1545	codeforces#P1624C Division by Two and Permutation constructive algorithms flows graph matchings greedy math *1100	0 / 0	3
	1544	codeforces#P1624D Palindromes Coloring binary search greedy sortings strings *1400	0 / 0	4
	1543	codeforces#P1624E Masha-forgetful brute force constructive algorithms dp hashing implementation strings *2000	0 / 0	7
	1542	codeforces#P1624F Interacdive Problem binary search constructive algorithms interactive *2000	0 / 0	7
	1541	codeforces#P1624G MinOr Tree bitmasks dfs and similar dsu graphs greedy *1900	0 / 0	6
	1540	codeforces#P1625A Ancient Civilization bitmasks greedy math *800	0 / 0	3
	1539	codeforces#P1625B Elementary Particles brute force greedy sortings *1100	0 / 0	3
	1538	codeforces#P1625C Road Optimization dp *1700	0 / 0	5
	1537	codeforces#P1625D Binary Spiders bitmasks data structures implementation math sortings trees *2300	0 / 0	8
	1536	codeforces#P1625E1 Cats on the Upgrade (easy version) brute force data structures dfs and similar divide and conquer dp graphs trees *2500	0 / 0	9
	1535	codeforces#P1625E2 Cats on the Upgrade (hard version) binary search data structures dfs and similar graphs trees *2800	0 / 0	10
	1534	codeforces#P1626A Equidistant Letters constructive algorithms sortings *800	0 / 0	3
	1533	codeforces#P1626B Minor Reduction greedy strings *1100	0 / 0	3
	1532	codeforces#P1626C Monsters And Spells binary search data structures dp greedy implementation math two pointers *1700	0 / 0	5
	1531	codeforces#P1626D Martial Arts Tournament binary search brute force greedy math *2100	0 / 0	7
	1530	codeforces#P1626E Black and White Tree dfs and similar greedy trees *2400	0 / 0	9
	1529	codeforces#P1626F A Random Code Problem combinatorics dp math number theory probabilities *2800	0 / 0	10
	1528	codeforces#P1627A Not Shading constructive algorithms implementation *800	0 / 0	3
	1527	codeforces#P1627B Not Sitting games greedy sortings *1300	0 / 0	4
	1526	codeforces#P1627C Not Assigning constructive algorithms dfs and similar number theory trees *1400	0 / 0	4
	1525	codeforces#P1627D Not Adding brute force dp math number theory *1900	0 / 0	6
	1524	codeforces#P1627E Not Escaping data structures dp implementation shortest paths two pointers *2200	0 / 0	8
	1523	codeforces#P1627F Not Splitting geometry graphs greedy implementation shortest paths *2700	0 / 0	10
	1522	codeforces#P1628A Meximum Array binary search constructive algorithms greedy implementation math two pointers *1400	0 / 0	4
	1521	codeforces#P1628B Peculiar Movie Preferences greedy strings *1700	0 / 0	5
	1520	codeforces#P1628C Grid Xor constructive algorithms greedy implementation interactive math *2300	0 / 0	8
	1519	codeforces#P1628D1 Game on Sum (Easy Version) combinatorics dp games math *2100	0 / 0	7
	1518	codeforces#P1628D2 Game on Sum (Hard Version) combinatorics dp games math *2400	0 / 0	9
	1517	codeforces#P1628E Groceries in Meteor Town binary search data structures dsu trees *3100	0 / 0	10
	1516	codeforces#P1628F Spaceship Crisis Management binary search data structures geometry sortings *3500	0 / 0	10
	1515	codeforces#P1629A Download More RAM brute force greedy sortings *800	0 / 0	3
	1514	codeforces#P1629B GCD Arrays greedy math number theory *800	0 / 0	3
	1513	codeforces#P1630A And Matching bitmasks constructive algorithms *1500	0 / 0	5
	1512	codeforces#P1630B Range and Partition binary search constructive algorithms data structures greedy two pointers *1800	0 / 0	6
	1511	codeforces#P1630C Paint the Middle dp greedy sortings two pointers *2200	0 / 0	8
	1510	codeforces#P1630D Flipping Range constructive algorithms dp greedy number theory *2400	0 / 0	9
	1509	codeforces#P1630E Expected Components combinatorics math number theory probabilities *2900	0 / 0	10
	1508	codeforces#P1630F Making It Bipartite flows graph matchings graphs number theory *3400	0 / 0	10
	1507	codeforces#P1631A Min Max Swap greedy *800	0 / 0	3
	1506	codeforces#P1631B Fun with Even Subarrays dp greedy *1100	0 / 0	3
	1505	codeforces#P1632A ABC implementation *800	0 / 0	3
	1504	codeforces#P1632B Roof Construction bitmasks constructive algorithms *1000	0 / 0	3
	1503	codeforces#P1632C Strange Test binary search bitmasks brute force dp math *1600	0 / 0	5
	1502	codeforces#P1632D New Year Concert binary search data structures greedy math number theory two pointers *2000	0 / 0	7
	1501	codeforces#P1632E1 Distance Tree (easy version) binary search data structures dfs and similar graphs shortest paths trees *2400	0 / 0	9
	1500	codeforces#P1632E2 Distance Tree (hard version) binary search dfs and similar shortest paths trees *2700	0 / 0	10
	1499	codeforces#P1633A Div brute force *800	0 / 0	3
	1498	codeforces#P1633B Minority greedy *800	0 / 0	3
	1497	codeforces#P1633C Kill the Monster brute force math *1100	0 / 0	3
	1496	codeforces#P1633D Make Them Equal dp greedy *1600	0 / 0	5
	1495	codeforces#P1633E Spanning Tree Queries binary search data structures dfs and similar dsu graphs greedy math sortings trees *2400	0 / 0	9
	1494	codeforces#P1633F Perfect Matching data structures divide and conquer interactive trees *2800	0 / 0	10
	1493	codeforces#P1634A Reverse and Concatenate greedy strings *800	0 / 0	3
	1492	codeforces#P1634B Fortune Telling bitmasks math *1400	0 / 0	4
	1491	codeforces#P1634C OKEA constructive algorithms *1000	0 / 0	3
	1490	codeforces#P1634D Finding Zero constructive algorithms interactive math *2000	0 / 0	7
	1489	codeforces#P1634E Fair Share constructive algorithms data structures dfs and similar graph matchings graphs *2400	0 / 0	9
	1488	codeforces#P1634F Fibonacci Additions brute force data structures hashing implementation math *2700	0 / 0	10
	1487	codeforces#P1635A Min Or Sum bitmasks greedy *800	0 / 0	3
	1486	codeforces#P1635B Avoid Local Maximums greedy *800	0 / 0	3
	1485	codeforces#P1635C Differential Sorting constructive algorithms greedy *1200	0 / 0	4
	1484	codeforces#P1635D Infinite Set bitmasks dp math matrices number theory strings *1800	0 / 0	6
	1483	codeforces#P1635E Cars 2-sat constructive algorithms dfs and similar dsu graphs greedy sortings *2200	0 / 0	8
	1482	codeforces#P1635F Closest Pair data structures greedy *2800	0 / 0	10
	1481	codeforces#P1637A Sorting Parts brute force sortings *800	0 / 0	3
	1480	codeforces#P1637B MEX and Array brute force dp greedy math *1100	0 / 0	3
	1479	codeforces#P1637C Andrew and Stones greedy implementation *1200	0 / 0	4
	1478	codeforces#P1637D Yet Another Minimization Problem dp greedy math *1800	0 / 0	6
	1477	codeforces#P1637E Best Pair binary search brute force implementation *2100	0 / 0	7
	1476	codeforces#P1637F Towers constructive algorithms dfs and similar dp greedy trees *2500	0 / 0	9
	1475	codeforces#P1637G Birthday constructive algorithms greedy math *3000	0 / 0	10
	1474	codeforces#P1637H Minimize Inversions Number data structures greedy math sortings *3500	0 / 0	10
	1473	codeforces#P1638A Reverse constructive algorithms greedy math *800	0 / 0	3
	1472	codeforces#P1638B Odd Swap Sort data structures math sortings *1100	0 / 0	3
	1471	codeforces#P1638C Inversion Graph data structures dsu graphs math *1300	0 / 0	4
	1470	codeforces#P1638D Big Brush constructive algorithms data structures greedy implementation *2000	0 / 0	7
	1469	codeforces#P1638E Colorful Operations brute force data structures implementation *2400	0 / 0	9
	1468	codeforces#P1638F Two Posters brute force data structures greedy two pointers *3200	0 / 0	10
	1467	codeforces#P1639A Treasure Hunt graphs interactive	0 / 0	(None)
	1466	codeforces#P1639B Treasure Hunt graphs interactive	0 / 0	(None)
	1465	codeforces#P1639C Treasure Hunt graphs interactive	0 / 0	(None)
	1464	codeforces#P1639D Treasure Hunt graphs interactive	0 / 0	(None)
	1463	codeforces#P1639E Treasure Hunt graphs interactive	0 / 0	(None)
	1462	codeforces#P1639F Treasure Hunt graphs interactive	0 / 0	(None)
	1461	codeforces#P1639G Treasure Hunt graphs interactive	0 / 0	(None)
	1460	codeforces#P1639H Treasure Hunt graphs interactive	0 / 0	(None)
	1459	codeforces#P1639I Treasure Hunt graphs interactive	0 / 0	(None)
	1458	codeforces#P1639J Treasure Hunt graphs interactive	0 / 0	(None)
	1457	codeforces#P1639K Treasure Hunt graphs interactive	0 / 0	(None)

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