Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	1484	P1635D Infinite Set bitmasks dp math matrices number theory strings *1800	0 / 0	6
	1483	P1635E Cars 2-sat constructive algorithms dfs and similar dsu graphs greedy sortings *2200	0 / 0	8
	1482	P1635F Closest Pair data structures greedy *2800	0 / 0	10
	1481	P1637A Sorting Parts brute force sortings *800	0 / 0	3
	1480	P1637B MEX and Array brute force dp greedy math *1100	0 / 0	3
	1479	P1637C Andrew and Stones greedy implementation *1200	0 / 0	4
	1478	P1637D Yet Another Minimization Problem dp greedy math *1800	0 / 0	6
	1477	P1637E Best Pair binary search brute force implementation *2100	0 / 0	7
	1476	P1637F Towers constructive algorithms dfs and similar dp greedy trees *2500	0 / 0	9
	1475	P1637G Birthday constructive algorithms greedy math *3000	0 / 0	10
	1474	P1637H Minimize Inversions Number data structures greedy math sortings *3500	0 / 0	10
	1473	P1638A Reverse constructive algorithms greedy math *800	0 / 0	3
	1472	P1638B Odd Swap Sort data structures math sortings *1100	0 / 0	3
	1471	P1638C Inversion Graph data structures dsu graphs math *1300	0 / 0	4
	1470	P1638D Big Brush constructive algorithms data structures greedy implementation *2000	0 / 0	7
	1469	P1638E Colorful Operations brute force data structures implementation *2400	0 / 0	9
	1468	P1638F Two Posters brute force data structures greedy two pointers *3200	0 / 0	10
	1467	P1639A Treasure Hunt graphs interactive	0 / 0	(None)
	1466	P1639B Treasure Hunt graphs interactive	0 / 0	(None)
	1465	P1639C Treasure Hunt graphs interactive	0 / 0	(None)
	1464	P1639D Treasure Hunt graphs interactive	0 / 0	(None)
	1463	P1639E Treasure Hunt graphs interactive	0 / 0	(None)
	1462	P1639F Treasure Hunt graphs interactive	0 / 0	(None)
	1461	P1639G Treasure Hunt graphs interactive	0 / 0	(None)
	1460	P1639H Treasure Hunt graphs interactive	0 / 0	(None)
	1459	P1639I Treasure Hunt graphs interactive	0 / 0	(None)
	1458	P1639J Treasure Hunt graphs interactive	0 / 0	(None)
	1457	P1639K Treasure Hunt graphs interactive	0 / 0	(None)
	1456	P1641A Great Sequence brute force greedy sortings *1200	0 / 0	4
	1455	P1641B Repetitions Decoding constructive algorithms implementation sortings *2000	0 / 0	7
	1454	P1641C Anonymity Is Important binary search brute force data structures dsu greedy sortings *2200	0 / 0	8
	1453	P1641D Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers *2700	0 / 0	10
	1452	P1641E Special Positions combinatorics divide and conquer fft math *3300	0 / 0	10
	1451	P1641F Covering Circle geometry *3500	0 / 0	10
	1450	P1642A Hard Way geometry *800	0 / 0	3
	1449	P1642B Power Walking greedy *900	0 / 0	3
	1448	P1644A Doors and Keys implementation *800	0 / 0	3
	1447	P1644B Anti-Fibonacci Permutation brute force constructive algorithms implementation *800	0 / 0	3
	1446	P1644C Increase Subarray Sums brute force dp greedy implementation *1400	0 / 0	4
	1445	P1644D Cross Coloring data structures implementation math *1700	0 / 0	5
	1444	P1644E Expand the Path brute force combinatorics data structures implementation math *1900	0 / 0	6
	1443	P1644F Basis combinatorics fft math number theory *2900	0 / 0	10
	1442	P1646A Square Counting math *800	0 / 0	3
	1441	P1646B Quality vs Quantity brute force constructive algorithms greedy sortings two pointers *800	0 / 0	3
	1440	P1646C Factorials and Powers of Two bitmasks brute force constructive algorithms dp math *1500	0 / 0	5
	1439	P1646D Weight the Tree constructive algorithms dfs and similar dp implementation trees *2000	0 / 0	7
	1438	P1646E Power Board brute force dp math number theory *2200	0 / 0	8
	1437	P1646F Playing Around the Table constructive algorithms greedy implementation *2900	0 / 0	10
	1436	P1647A Madoka and Math Dad implementation math *800	0 / 0	3
	1435	P1647B Madoka and the Elegant Gift brute force constructive algorithms graphs implementation *1200	0 / 0	4
	1434	P1647C Madoka and Childish Pranks constructive algorithms greedy *1300	0 / 0	4
	1433	P1647D Madoka and the Best School in Russia constructive algorithms dp math number theory *1900	0 / 0	6
	1432	P1647E Madoka and the Sixth-graders data structures dfs and similar greedy *2500	0 / 0	9
	1431	P1647F Madoka and Laziness dp greedy *3100	0 / 0	10
	1430	P1648A Weird Sum combinatorics data structures geometry math matrices sortings *1400	0 / 0	4
	1429	P1648B Integral Array brute force constructive algorithms data structures math *1800	0 / 0	6
	1428	P1648C Tyler and Strings combinatorics data structures implementation *1900	0 / 0	6
	1427	P1648D Serious Business data structures divide and conquer dp implementation shortest paths *2800	0 / 0	10
	1426	P1648E Air Reform data structures dfs and similar divide and conquer dsu graphs implementation trees *3200	0 / 0	10
	1425	P1648F Two Avenues data structures dfs and similar graphs *3500	0 / 0	10
	1424	P1649A Game implementation *800	0 / 0	3
	1423	P1649B Game of Ball Passing greedy implementation *1300	0 / 0	4
	1422	P1650A Deletions of Two Adjacent Letters implementation strings *800	0 / 0	3
	1421	P1650B DIV + MOD math *900	0 / 0	3
	1420	P1650C Weight of the System of Nested Segments greedy hashing implementation sortings *1200	0 / 0	4
	1419	P1650D Twist the Permutation brute force constructive algorithms implementation math *1300	0 / 0	4
	1418	P1650E Rescheduling the Exam binary search data structures greedy implementation math sortings *1900	0 / 0	6
	1417	P1650F Vitaly and Advanced Useless Algorithms dp greedy implementation *2200	0 / 0	8
	1416	P1650G Counting Shortcuts data structures dfs and similar dp graphs shortest paths *2100	0 / 0	7
	1415	P1651A Playoff implementation *800	0 / 0	3
	1414	P1651B Prove Him Wrong constructive algorithms greedy *800	0 / 0	3
	1413	P1651C Fault-tolerant Network brute force data structures implementation *1500	0 / 0	5
	1412	P1651D Nearest Excluded Points binary search data structures dfs and similar graphs shortest paths *1900	0 / 0	6
	1411	P1651E Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math *2600	0 / 0	10
	1410	P1651F Tower Defense binary search brute force data structures *3000	0 / 0	10
	1409	P1654A Maximum Cake Tastiness brute force greedy implementation sortings *800	0 / 0	3
	1408	P1654B Prefix Removals strings *800	0 / 0	3
	1407	P1654C Alice and the Cake data structures greedy implementation sortings *1400	0 / 0	4
	1406	P1654D Potion Brewing Class dfs and similar math number theory trees *2100	0 / 0	7
	1405	P1654E Arithmetic Operations brute force data structures graphs math *2300	0 / 0	8
	1404	P1654F Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings *2800	0 / 0	10
	1403	P1654G Snowy Mountain data structures dfs and similar graphs greedy shortest paths trees *2900	0 / 0	10
	1402	P1654H Three Minimums combinatorics constructive algorithms divide and conquer dp fft math *3500	0 / 0	10
	1401	P1656A Good Pairs math sortings *800	0 / 0	3
	1400	P1656B Subtract Operation data structures greedy math two pointers *1100	0 / 0	3
	1399	P1656C Make Equal With Mod constructive algorithms math number theory sortings *1200	0 / 0	4
	1398	P1656D K-good constructive algorithms math number theory *1900	0 / 0	6
	1397	P1656E Equal Tree Sums constructive algorithms dfs and similar math trees *2200	0 / 0	8
	1396	P1656F Parametric MST binary search constructive algorithms graphs greedy math sortings *2600	0 / 0	10
	1395	P1656G Cycle Palindrome constructive algorithms graphs math *3200	0 / 0	10
	1394	P1656H Equal LCM Subsets data structures math number theory *3200	0 / 0	10
	1393	P1656I Neighbour Ordering constructive algorithms graphs *3500	0 / 0	10
	1392	P1657A Integer Moves brute force math *800	0 / 0	3
	1391	P1657B XY Sequence greedy *800	0 / 0	3
	1390	P1657C Bracket Sequence Deletion greedy implementation *1200	0 / 0	4
	1389	P1657D For Gamers binary search brute force greedy math sortings *2000	0 / 0	7
	1388	P1657E Star MST combinatorics dp graph matchings math *2200	0 / 0	8
	1387	P1657F Words on Tree 2-sat dfs and similar dsu graphs trees *2600	0 / 0	10
	1386	P1658A Marin and Photoshoot constructive algorithms implementation math *800	0 / 0	3
	1385	P1658B Marin and Anti-coprime Permutation combinatorics math number theory *800	0 / 0	3

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