ID	题目显示标签隐藏标签	AC / 尝试	难度
1476	P1601A Array Elimination bitmasks greedy math number theory *1300	0 / 0	普及-
1471	P1601F Two Sorts binary search dfs and similar math meet-in-the-middle *3400	0 / 0	CTSC
1468	P1603A Di-visible Confusion constructive algorithms math number theory *1300	0 / 0	普及-
1467	P1603B Moderate Modular Mode constructive algorithms math number theory *1600	0 / 0	普及
1466	P1603C Extreme Extension dp greedy math number theory *2300	0 / 0	省选
1464	P1603E A Perfect Problem combinatorics dp math *3200	0 / 0	CTSC
1463	P1603F October 18, 2017 combinatorics dp implementation math *2700	0 / 0	CTSC
1460	P1605A A.M math number theory *800	0 / 0	普及-
1456	P1605E Array Equalizer binary search greedy implementation math number theory sortings two pointers *2400	0 / 0	NOI
1453	P1606B Update Files greedy implementation math *1100	0 / 0	普及-
1450	P1606E Arena combinatorics dp math *2100	0 / 0	提高
1447	P1607B Odd Grasshopper math *900	0 / 0	普及-
1445	P1607D Blue-Red Permutation greedy math sortings *1300	0 / 0	普及-
1440	P1608A Find Array constructive algorithms math *800	0 / 0	普及-
1437	P1608D Dominoes combinatorics fft graphs math number theory *2400	0 / 0	NOI
1433	P1609A Divide and Multiply greedy implementation math number theory *900	0 / 0	普及-
1427	P1609G A Stroll Around the Matrix data structures greedy math *3000	0 / 0	CTSC
1425	P1610A Anti Light's Cell Guessing math *900	0 / 0	普及-
1422	P1610D Not Quite Lee combinatorics dp math number theory *2000	0 / 0	提高
1421	P1610E AmShZ and G.O.A.T. binary search brute force greedy implementation math *2300	0 / 0	省选
1416	P1611A Make Even constructive algorithms math *800	0 / 0	普及-
1415	P1611B Team Composition: Programmers and Mathematicians binary search constructive algorithms math *800	0 / 0	普及-
1406	P1612C Chat Ban binary search math *1300	0 / 0	普及-
1405	P1612D X-Magic Pair math number theory *1600	0 / 0	普及
1401	P1613A Long Comparison implementation math *900	0 / 0	普及-
1398	P1613D MEX Sequences dp math *1900	0 / 0	普及
1393	P1614C Divan and bitwise operations bitmasks combinatorics constructive algorithms dp math *1500	0 / 0	普及
1389	P1615A Closing The Gap greedy math *800	0 / 0	普及-
1388	P1615B And It's Non-Zero bitmasks greedy math *1300	0 / 0	普及-
1387	P1615C Menorah brute force graphs greedy math *1600	0 / 0	普及
1385	P1615E Purple Crayon data structures dfs and similar games graphs greedy math sortings trees *2400	0 / 0	NOI
1384	P1615F LEGOndary Grandmaster combinatorics dp math *2800	0 / 0	CTSC
1379	P1616C Representative Edges brute force geometry implementation math *1500	0 / 0	普及
1378	P1616D Keep the Average High dp greedy math *2000	0 / 0	提高
1376	P1616F Tricolor Triangles brute force graphs math matrices *2900	0 / 0	CTSC
1374	P1616H Keep XOR Low bitmasks combinatorics data structures divide and conquer dp math *3000	0 / 0	CTSC
1372	P1617B GCD Problem brute force constructive algorithms math number theory *900	0 / 0	普及-
1371	P1617C Paprika and Permutation binary search greedy math sortings *1300	0 / 0	普及-
1369	P1617D2 Too Many Impostors (hard version) constructive algorithms implementation interactive math *2400	0 / 0	NOI
1368	P1617E Christmas Chocolates dfs and similar dp games graphs implementation math number theory shortest paths trees *2700	0 / 0	CTSC
1367	P1618A Polycarp and Sums of Subsequences math sortings *800	0 / 0	普及-
1365	P1618C Paint the Array math *1100	0 / 0	普及-
1364	P1618D Array and Operations dp greedy math *1300	0 / 0	普及-
1363	P1618E Singers' Tour constructive algorithms math *1700	0 / 0	普及
1362	P1618F Reverse bitmasks constructive algorithms dfs and similar implementation math strings *2000	0 / 0	提高
1359	P1619B Squares and Cubes implementation math *800	0 / 0	普及-
1356	P1619E MEX and Increments constructive algorithms data structures dp greedy implementation math sortings *1700	0 / 0	普及
1355	P1619F Let's Play the Hat? brute force constructive algorithms greedy math *2000	0 / 0	提高
1351	P1620B Triangles on a Rectangle geometry greedy math *1000	0 / 0	普及-
1350	P1620C BA-String brute force dp greedy implementation math *1800	0 / 0	普及
1343	P1621C Hidden Permutations dfs and similar interactive math *1700	0 / 0	普及
1342	P1621D The Winter Hike constructive algorithms greedy math *2100	0 / 0	提高
1339	P1621G Weighted Increasing Subsequences data structures dp math *3200	0 / 0	CTSC
1336	P1622A Construct a Rectangle geometry math *800	0 / 0	普及-
1335	P1622B Berland Music data structures greedy math sortings *1000	0 / 0	普及-
1333	P1622D Shuffle combinatorics math two pointers *2000	0 / 0	提高
1331	P1622F Quadratic Set constructive algorithms hashing math number theory *2900	0 / 0	CTSC
1330	P1623A Robot Cleaner brute force implementation math *800	0 / 0	普及-
1327	P1623D Robot Cleaner Revisit implementation math probabilities *2300	0 / 0	省选
1325	P1624A Plus One on the Subset math *800	0 / 0	普及-
1324	P1624B Make AP implementation math *900	0 / 0	普及-
1323	P1624C Division by Two and Permutation constructive algorithms flows graph matchings greedy math *1100	0 / 0	普及-
1318	P1625A Ancient Civilization bitmasks greedy math *800	0 / 0	普及-
1315	P1625D Binary Spiders bitmasks data structures implementation math sortings trees *2300	0 / 0	省选
1310	P1626C Monsters And Spells binary search data structures dp greedy implementation math two pointers *1700	0 / 0	普及
1309	P1626D Martial Arts Tournament binary search brute force greedy math *2100	0 / 0	提高
1307	P1626F A Random Code Problem combinatorics dp math number theory probabilities *2800	0 / 0	CTSC
1303	P1627D Not Adding brute force dp math number theory *1900	0 / 0	普及
1300	P1628A Meximum Array binary search constructive algorithms greedy implementation math two pointers *1400	0 / 0	普及-
1298	P1628C Grid Xor constructive algorithms greedy implementation interactive math *2300	0 / 0	省选
1297	P1628D1 Game on Sum (Easy Version) combinatorics dp games math *2100	0 / 0	提高
1296	P1628D2 Game on Sum (Hard Version) combinatorics dp games math *2400	0 / 0	NOI
1292	P1629B GCD Arrays greedy math number theory *800	0 / 0	普及-
1287	P1630E Expected Components combinatorics math number theory probabilities *2900	0 / 0	CTSC
1281	P1632C Strange Test binary search bitmasks brute force dp math *1600	0 / 0	普及
1280	P1632D New Year Concert binary search data structures greedy math number theory two pointers *2000	0 / 0	提高
1275	P1633C Kill the Monster brute force math *1100	0 / 0	普及-
1273	P1633E Spanning Tree Queries binary search data structures dfs and similar dsu graphs greedy math sortings trees *2400	0 / 0	NOI
1270	P1634B Fortune Telling bitmasks math *1400	0 / 0	普及-
1268	P1634D Finding Zero constructive algorithms interactive math *2000	0 / 0	提高
1266	P1634F Fibonacci Additions brute force data structures hashing implementation math *2700	0 / 0	CTSC
1262	P1635D Infinite Set bitmasks dp math matrices number theory strings *1800	0 / 0	普及
1258	P1637B MEX and Array brute force dp greedy math *1100	0 / 0	普及-
1256	P1637D Yet Another Minimization Problem dp greedy math *1800	0 / 0	普及
1253	P1637G Birthday constructive algorithms greedy math *3000	0 / 0	CTSC
1252	P1637H Minimize Inversions Number data structures greedy math sortings *3500	0 / 0	CTSC
1251	P1638A Reverse constructive algorithms greedy math *800	0 / 0	普及-
1250	P1638B Odd Swap Sort data structures math sortings *1100	0 / 0	普及-
1249	P1638C Inversion Graph data structures dsu graphs math *1300	0 / 0	普及-
1231	P1641D Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers *2700	0 / 0	CTSC
1230	P1641E Special Positions combinatorics divide and conquer fft math *3300	0 / 0	CTSC
1223	P1644D Cross Coloring data structures implementation math *1700	0 / 0	普及
1222	P1644E Expand the Path brute force combinatorics data structures implementation math *1900	0 / 0	普及
1221	P1644F Basis combinatorics fft math number theory *2900	0 / 0	CTSC
1220	P1646A Square Counting math *800	0 / 0	普及-
1218	P1646C Factorials and Powers of Two bitmasks brute force constructive algorithms dp math *1500	0 / 0	普及
1216	P1646E Power Board brute force dp math number theory *2200	0 / 0	省选
1214	P1647A Madoka and Math Dad implementation math *800	0 / 0	普及-
1211	P1647D Madoka and the Best School in Russia constructive algorithms dp math number theory *1900	0 / 0	普及
1208	P1648A Weird Sum combinatorics data structures geometry math matrices sortings *1400	0 / 0	普及-

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