implementation - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	1514	P1617E Christmas Chocolates dfs and similar dp games graphs implementation math number theory shortest paths trees *2700	0 / 0	10
	1512	P1618B Missing Bigram implementation *800	0 / 0	3
	1508	P1618F Reverse bitmasks constructive algorithms dfs and similar implementation math strings *2000	0 / 0	7
	1506	P1619A Square String? implementation strings *800	0 / 0	3
	1505	P1619B Squares and Cubes implementation math *800	0 / 0	3
	1504	P1619C Wrong Addition implementation *1200	0 / 0	4
	1502	P1619E MEX and Increments constructive algorithms data structures dp greedy implementation math sortings *1700	0 / 0	5
	1498	P1620A Equal or Not Equal constructive algorithms dsu implementation *800	0 / 0	3
	1496	P1620C BA-String brute force dp greedy implementation math *1800	0 / 0	6
	1494	P1620E Replace the Numbers constructive algorithms data structures dsu implementation *1900	0 / 0	6
	1490	P1621B Integers Shop data structures greedy implementation *1500	0 / 0	5
	1487	P1621E New School binary search data structures dp greedy implementation sortings *2300	0 / 0	8
	1486	P1621F Strange Instructions data structures greedy implementation *2700	0 / 0	10
	1476	P1623A Robot Cleaner brute force implementation math *800	1 / 3	3
	1475	P1623B Game on Ranges brute force dfs and similar implementation sortings *1100	0 / 0	3
	1473	P1623D Robot Cleaner Revisit implementation math probabilities *2300	0 / 0	8
	1470	P1624B Make AP implementation math *900	0 / 0	3
	1467	P1624E Masha-forgetful brute force constructive algorithms dp hashing implementation strings *2000	0 / 0	7
	1461	P1625D Binary Spiders bitmasks data structures implementation math sortings trees *2300	0 / 0	8
	1456	P1626C Monsters And Spells binary search data structures dp greedy implementation math two pointers *1700	0 / 0	5
	1452	P1627A Not Shading constructive algorithms implementation *800	0 / 0	3
	1446	P1627E Not Escaping data structures dp implementation shortest paths two pointers *2200	0 / 0	8
	1443	P1627F Not Splitting geometry graphs greedy implementation shortest paths *2700	0 / 0	10
	1441	P1628A Meximum Array binary search constructive algorithms greedy implementation math two pointers *1400	0 / 0	4
	1437	P1628C Grid Xor constructive algorithms greedy implementation interactive math *2300	0 / 0	8
	1408	P1632A ABC implementation *800	0 / 0	3
	1390	P1634F Fibonacci Additions brute force data structures hashing implementation math *2700	0 / 0	10
	1381	P1637C Andrew and Stones greedy implementation *1200	0 / 0	4
	1379	P1637E Best Pair binary search brute force implementation *2100	0 / 0	7
	1372	P1638D Big Brush constructive algorithms data structures greedy implementation *2000	0 / 0	7
	1371	P1638E Colorful Operations brute force data structures implementation *2400	0 / 0	9
	1357	P1641B Repetitions Decoding constructive algorithms implementation sortings *2000	0 / 0	7
	1350	P1644A Doors and Keys implementation *800	0 / 0	3
	1349	P1644B Anti-Fibonacci Permutation brute force constructive algorithms implementation *800	0 / 0	3
	1348	P1644C Increase Subarray Sums brute force dp greedy implementation *1400	0 / 0	4
	1347	P1644D Cross Coloring data structures implementation math *1700	0 / 0	5
	1346	P1644E Expand the Path brute force combinatorics data structures implementation math *1900	0 / 0	6
	1341	P1646D Weight the Tree constructive algorithms dfs and similar dp implementation trees *2000	0 / 0	7
	1339	P1646F Playing Around the Table constructive algorithms greedy implementation *2900	0 / 0	10
	1338	P1647A Madoka and Math Dad implementation math *800	0 / 0	3
	1337	P1647B Madoka and the Elegant Gift brute force constructive algorithms graphs implementation *1200	0 / 0	4
	1330	P1648C Tyler and Strings combinatorics data structures implementation *1900	0 / 0	6
	1329	P1648D Serious Business data structures divide and conquer dp implementation shortest paths *2800	0 / 0	10
	1328	P1648E Air Reform data structures dfs and similar divide and conquer dsu graphs implementation trees *3200	0 / 0	10
	1326	P1649A Game implementation *800	0 / 0	3
	1325	P1649B Game of Ball Passing greedy implementation *1300	0 / 0	4
	1324	P1650A Deletions of Two Adjacent Letters implementation strings *800	0 / 0	3
	1322	P1650C Weight of the System of Nested Segments greedy hashing implementation sortings *1200	0 / 0	4
	1321	P1650D Twist the Permutation brute force constructive algorithms implementation math *1300	0 / 0	4
	1320	P1650E Rescheduling the Exam binary search data structures greedy implementation math sortings *1900	0 / 0	6
	1319	P1650F Vitaly and Advanced Useless Algorithms dp greedy implementation *2200	0 / 0	8
	1317	P1651A Playoff implementation *800	0 / 0	3
	1315	P1651C Fault-tolerant Network brute force data structures implementation *1500	0 / 0	5
	1311	P1654A Maximum Cake Tastiness brute force greedy implementation sortings *800	0 / 0	3
	1309	P1654C Alice and the Cake data structures greedy implementation sortings *1400	0 / 0	4
	1292	P1657C Bracket Sequence Deletion greedy implementation *1200	0 / 0	4
	1288	P1658A Marin and Photoshoot constructive algorithms implementation math *800	0 / 0	3
	1283	P1658E Gojou and Matrix Game data structures dp games hashing implementation math number theory sortings *2500	0 / 0	9
	1281	P1659A Red Versus Blue constructive algorithms greedy implementation math *1000	0 / 0	3
	1279	P1659C Line Empire binary search brute force dp greedy implementation math *1500	0 / 0	5
	1278	P1659D Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers *1900	0 / 0	6
	1272	P1660D Maximum Product Strikes Back brute force implementation math two pointers *1600	0 / 0	5
	1271	P1660E Matrix and Shifts brute force constructive algorithms greedy implementation *1600	0 / 0	5
	1270	P1660F1 Promising String (easy version) brute force implementation math strings *1700	0 / 0	5
	1269	P1660F2 Promising String (hard version) data structures implementation math strings *2100	0 / 0	7
	1262	P1662A Organizing SWERC brute force implementation	0 / 0	(None)
	1259	P1662D Evolution of Weasels greedy implementation strings	0 / 0	(None)
	1257	P1662F Antennas data structures dfs and similar graphs graphs implementation implementation shortest paths shortest paths	0 / 0	(None)
	1254	P1662I Ice Cream Shop brute force implementation sortings	0 / 0	(None)
	1248	P1662O Circular Maze brute force dfs and similar graphs implementation	0 / 0	(None)
	1246	P1663B Mike's Sequence *special problem divide and conquer implementation math	0 / 0	(None)
	1245	P1663C Pōja Verdon *special problem implementation math	0 / 0	(None)
	1243	P1663E Are You Safe? *special problem implementation	0 / 0	(None)
	1235	P1665E MinimizOR bitmasks brute force data structures divide and conquer greedy implementation two pointers *2500	0 / 0	9
	1229	P1666F Fancy Stack combinatorics dp implementation *2200	0 / 0	8
	1217	P1667F Yin Yang implementation *3500	0 / 0	10
	1216	P1668A Direction Change implementation math *800	0 / 0	3
	1214	P1669A Division? implementation *800	0 / 0	3
	1213	P1669B Triple implementation sortings *800	0 / 0	3
	1212	P1669C Odd/Even Increments greedy greedy implementation math *800	0 / 0	3
	1211	P1669D Colorful Stamp implementation *1100	0 / 0	3
	1208	P1669G Fall Down dfs and similar implementation *1200	0 / 0	4
	1206	P1670A Prof greedy implementation sortings *800	0 / 0	3
	1205	P1670B Dorms War brute force implementation strings *1100	0 / 0	3
	1204	P1670C Where is the Pizza? data structures dfs and similar dsu graphs implementation math *1400	0 / 0	4
	1203	P1670D Very Suspicious binary search brute force geometry greedy implementation math *1700	0 / 0	5
	1200	P1671A String Building implementation *800	0 / 0	3
	1194	P1672A Log Chopping games implementation math *800	0 / 0	3
	1193	P1672B I love AAAB constructive algorithms implementation *800	0 / 0	3
	1192	P1672C Unequal Array constructive algorithms greedy implementation *1100	0 / 0	3
	1191	P1672D Cyclic Rotation constructive algorithms greedy implementation two pointers *1700	0 / 0	5
	1176	P1674C Infinite Replacement combinatorics implementation strings *1000	0 / 0	3
	1175	P1674D A-B-C Sort constructive algorithms implementation sortings *1200	0 / 0	4
	1173	P1674F Desktop Rearrangement data structures greedy implementation *1800	0 / 0	6
	1170	P1675B Make It Increasing greedy implementation *900	0 / 0	3
	1169	P1675C Detective Task implementation *1100	0 / 0	3
	1168	P1675D Vertical Paths graphs implementation trees *1300	0 / 0	4
	1164	P1676A Lucky? implementation *800	0 / 0	3
	1162	P1676C Most Similar Words brute force greedy implementation implementation math strings *800	0 / 0	3
	1161	P1676D X-Sum brute force greedy implementation *1000	0 / 0	3

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