ID	题目显示标签隐藏标签	AC / 尝试	难度
3143	P1276C Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math *2300	0 / 0	省选
3131	P1278F Cards combinatorics dp math number theory probabilities *2600	0 / 0	CTSC
3127	P1279D Santa's Bot combinatorics math probabilities *1700	0 / 0	普及
3126	P1279E New Year Permutations combinatorics dp *2700	0 / 0	CTSC
3119	P1280F Intergalactic Sliding Puzzle combinatorics constructive algorithms math *3400	0 / 0	CTSC
3103	P1284B New Year and Ascent Sequence binary search combinatorics data structures dp implementation sortings *1400	0 / 0	普及-
3102	P1284C New Year and Permutation combinatorics math *1600	0 / 0	普及
3100	P1284E New Year and Castle Construction combinatorics geometry math sortings *2500	0 / 0	NOI
3092	P1285F Classical? binary search combinatorics number theory *2900	0 / 0	CTSC
3080	P1288C Two Arrays combinatorics dp *1600	0 / 0	普及
3065	P1292C Xenon's Attack on the Gangs combinatorics dfs and similar dp greedy trees *2300	0 / 0	省选
3062	P1292F Nora's Toy Boxes bitmasks combinatorics dp *3500	0 / 0	CTSC
3060	P1293B JOE is on TV! combinatorics greedy math *1000	0 / 0	普及-
3048	P1295F Good Contest combinatorics dp probabilities *2700	0 / 0	CTSC
3028	P1299D Around the World bitmasks combinatorics dfs and similar dp graphs graphs math trees *3000	0 / 0	CTSC
3022	P1301C Ayoub's function binary search combinatorics greedy math strings *1700	0 / 0	普及
2992	P1305C Kuroni and Impossible Calculation brute force combinatorics math number theory *1600	0 / 0	普及
2982	P1307E Cow and Treats binary search combinatorics dp greedy implementation math *2500	0 / 0	NOI
2964	P1312D Count the Arrays combinatorics math *1700	0 / 0	普及
2915	P1326C Permutation Partitions combinatorics greedy math *1300	0 / 0	普及-
2904	P1327E Count The Blocks combinatorics dp math *1800	0 / 0	普及
2903	P1327F AND Segments bitmasks combinatorics data structures dp two pointers *2500	0 / 0	NOI
2900	P1328B K-th Beautiful String binary search brute force combinatorics implementation math *1300	0 / 0	普及-
2894	P1329B Dreamoon Likes Sequences bitmasks combinatorics math *1700	0 / 0	普及
2876	P1332E Height All the Same combinatorics constructive algorithms math matrices *2100	0 / 0	提高
2863	P1334E Divisor Paths combinatorics graphs greedy math number theory *2200	0 / 0	省选
2849	P1336E1 Chiori and Doll Picking (easy version) bitmasks brute force combinatorics math *2700	0 / 0	CTSC
2848	P1336E2 Chiori and Doll Picking (hard version) bitmasks brute force combinatorics math *3500	0 / 0	CTSC
2825	P1342E Placing Rooks combinatorics fft math *2300	0 / 0	省选
2717	P1359E Modular Stability combinatorics math number theory *2000	0 / 0	提高
2674	P1365G Secure Password bitmasks combinatorics constructive algorithms interactive math *2800	0 / 0	CTSC
2669	P1366E Two Arrays binary search brute force combinatorics constructive algorithms dp two pointers *2100	0 / 0	提高
2633	P1371E1 Asterism (Easy Version) binary search brute force combinatorics math number theory sortings *1900	0 / 0	普及
2632	P1371E2 Asterism (Hard Version) binary search combinatorics dp math number theory sortings *2300	0 / 0	省选
2575	P1383E Strange Operation combinatorics data structures dp *2800	0 / 0	CTSC
2542	P1391C Cyclic Permutations combinatorics dp graphs math *1500	0 / 0	普及
2532	P1392H ZS Shuffles Cards combinatorics dp math probabilities *3000	0 / 0	CTSC
2492	P1400D Zigzags brute force combinatorics data structures math two pointers *1900	0 / 0	普及
2489	P1400G Mercenaries bitmasks brute force combinatorics dp dsu math two pointers *2600	0 / 0	CTSC
2480	P1402C Star Trek special problem combinatorics dfs and similar dp games graphs matrices trees 2600	0 / 0	CTSC
2477	P1403C Chess Rush special problem combinatorics dp implementation math 3200	0 / 0	CTSC
2453	P1408G Clusterization Counting combinatorics dp dsu fft graphs trees *2700	0 / 0	CTSC
2413	P1418E Expected Damage binary search combinatorics probabilities *2400	0 / 0	NOI
2399	P1420D Rescue Nibel! combinatorics data structures sortings *1800	0 / 0	普及
2390	P1422C Bargain combinatorics dp math *1700	0 / 0	普及
2367	P1425D Danger of Mad Snakes combinatorics dp math *2300	0 / 0	省选
2357	P1426F Number of Subsequences combinatorics dp strings *2000	0 / 0	提高
2318	P1433E Two Round Dances combinatorics math *1300	0 / 0	普及-
2312	P1436C Binary Search binary search combinatorics *1500	0 / 0	普及
2309	P1436F Sum Over Subsets combinatorics math number theory *2800	0 / 0	CTSC
2303	P1437F Emotional Fishermen combinatorics dp math two pointers *2600	0 / 0	CTSC
2291	P1439D INOI Final Contests combinatorics dp fft *3100	0 / 0	CTSC
2286	P1442B Identify the Operations combinatorics data structures dsu greedy implementation *1800	0 / 0	普及
2276	P1444B Divide and Sum combinatorics math sortings *1900	0 / 0	普及
2253	P1450H1 Multithreading (Easy Version) combinatorics fft math *2900	0 / 0	CTSC
2252	P1450H2 Multithreading (Hard Version) combinatorics implementation math *3300	0 / 0	CTSC
2241	P1452D Radio Towers combinatorics dp math *1600	0 / 0	普及
2227	P1454E Number of Simple Paths combinatorics dfs and similar graphs trees *2000	0 / 0	提高
2199	P1462E1 Close Tuples (easy version) binary search combinatorics math sortings two pointers *1500	0 / 0	普及
2198	P1462E2 Close Tuples (hard version) binary search combinatorics implementation math sortings two pointers *1700	0 / 0	普及
2183	P1466G Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings *2600	0 / 0	CTSC
2182	P1466H Finding satisfactory solutions combinatorics dp graphs greedy math *3300	0 / 0	CTSC
2177	P1467D Sum of Paths combinatorics dp math *2200	0 / 0	省选
2151	P1470E Strange Permutation binary search combinatorics data structures dp graphs implementation two pointers *3200	0 / 0	CTSC
2134	P1473G Tiles combinatorics dp fft math *2800	0 / 0	CTSC
2125	P1475C Ball in Berland combinatorics graphs math *1400	0 / 0	普及-
2123	P1475E Advertising Agency combinatorics math sortings *1600	0 / 0	普及
2108	P1477F Nezzar and Chocolate Bars combinatorics fft math probabilities *3500	0 / 0	CTSC
2077	P1485F Copy or Prefix Sum combinatorics data structures dp sortings *2400	0 / 0	NOI
2070	P1486F Pairs of Paths combinatorics data structures dfs and similar dp trees *2600	0 / 0	CTSC
2063	P1487G String Counting combinatorics dp fft math *2700	0 / 0	CTSC
2055	P1488H Build From Suffixes special problem combinatorics data structures 2800	0 / 0	CTSC
2016	P1495D BFS Trees combinatorics dfs and similar graphs math shortest paths trees *2600	0 / 0	CTSC
1998	P1499A Domino on Windowsill combinatorics constructive algorithms math *800	0 / 0	普及-
1994	P1499E Chaotic Merge combinatorics dp math strings *2400	0 / 0	NOI
1993	P1499F Diameter Cuts combinatorics dfs and similar dp trees *2400	0 / 0	NOI
1979	P1503E 2-Coloring combinatorics dp math *3100	0 / 0	CTSC
1958	P1508B Almost Sorted binary search combinatorics constructive algorithms implementation *1800	0 / 0	普及
1935	P1511E Colorings and Dominoes combinatorics dp greedy math *2100	0 / 0	提高
1924	P1513B AND Sequences bitmasks combinatorics constructive algorithms math *1400	0 / 0	普及-
1921	P1513E Cost Equilibrium combinatorics constructive algorithms math sortings *2300	0 / 0	省选
1918	P1514B AND 0, Sum Big bitmasks combinatorics math *1200	0 / 0	普及-
1910	P1515E Phoenix and Computers combinatorics dp math *2200	0 / 0	省选
1901	P1516E Baby Ehab Plays with Permutations combinatorics dp math *2500	0 / 0	NOI
1895	P1517F Reunion combinatorics dp trees *3200	0 / 0	CTSC
1869	P1523E Crypto Lights combinatorics dp math probabilities *2600	0 / 0	CTSC
1861	P1525E Assimilation IV combinatorics dp math probabilities two pointers *2100	0 / 0	提高
1854	P1526E Oolimry and Suffix Array combinatorics constructive algorithms math *2400	0 / 0	NOI
1848	P1527D MEX Tree combinatorics dfs and similar implementation math trees *2400	0 / 0	NOI
1845	P1528B Kavi on Pairing Duty combinatorics dp math *1700	0 / 0	普及
1842	P1528E Mashtali and Hagh Trees combinatorics dp trees *2900	0 / 0	CTSC
1841	P1528F AmShZ Farm combinatorics fft math *3300	0 / 0	CTSC
1827	P1530F Bingo bitmasks combinatorics dp math probabilities *2600	0 / 0	CTSC
1806	P1534C Little Alawn's Puzzle combinatorics dp dsu graphs math *1300	0 / 0	普及-
1789	P1536E Omkar and Forest combinatorics graphs math shortest paths *2300	0 / 0	省选
1788	P1536F Omkar and Akmar chinese remainder theorem combinatorics constructive algorithms fft games geometry math meet-in-the-middle string suffix structures *2600	0 / 0	CTSC
1773	P1539A Contest Start combinatorics geometry greedy math *1000	0 / 0	普及-
1766	P1540B Tree Array brute force combinatorics dp graphs math probabilities trees *2300	0 / 0	省选
1756	P1542D Priority Queue combinatorics dp implementation math ternary search *2200	0 / 0	省选
1755	P1542E1 Abnormal Permutation Pairs (easy version) combinatorics dp fft math *2400	0 / 0	NOI

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