	ID	题目显示标签隐藏标签	AC / 尝试	难度
	1494	P1280A Cut and Paste implementation math *1700	0 / 0	(无)
	1493	P1280B Beingawesomeism implementation math *1800	0 / 0	(无)
	1492	P1280C Jeremy Bearimy dfs and similar graphs greedy trees *2000	0 / 0	(无)
	1491	P1280D Miss Punyverse dp greedy trees *2500	0 / 0	(无)
	1490	P1280E Kirchhoff's Current Loss math *2900	0 / 0	(无)
	1489	P1280F Intergalactic Sliding Puzzle combinatorics constructive algorithms math *3400	0 / 0	(无)
	1488	P1281A Suffix Three implementation *800	0 / 0	(无)
	1487	P1281B Azamon Web Services greedy *1600	0 / 0	(无)
	1486	P1282A Temporarily unavailable implementation math *900	0 / 0	(无)
	1485	P1282B1 K for the Price of One (Easy Version) dp greedy sortings *1400	0 / 0	(无)
	1484	P1282B2 K for the Price of One (Hard Version) dp greedy sortings *1600	0 / 0	(无)
	1483	P1282C Petya and Exam greedy sortings two pointers *1800	0 / 0	(无)
	1482	P1282D Enchanted Artifact constructive algorithms interactive strings *2300	0 / 0	(无)
	1481	P1282E The Cake Is a Lie constructive algorithms data structures dfs and similar graphs *2400	0 / 0	(无)
	1480	P1283A Minutes Before the New Year math *800	0 / 0	(无)
	1479	P1283B Candies Division math *900	0 / 0	(无)
	1478	P1283C Friends and Gifts constructive algorithms data structures math *1500	0 / 0	(无)
	1477	P1283D Christmas Trees graphs greedy shortest paths *1800	0 / 0	(无)
	1476	P1283E New Year Parties dp greedy *1800	0 / 0	(无)
	1475	P1283F DIY Garland constructive algorithms greedy trees *2200	0 / 0	(无)
	1474	P1284A New Year and Naming implementation strings *800	0 / 0	(无)
	1473	P1284B New Year and Ascent Sequence binary search combinatorics data structures dp implementation sortings *1400	0 / 0	(无)
	1472	P1284C New Year and Permutation combinatorics math *1600	0 / 0	(无)
	1471	P1284D New Year and Conference binary search data structures hashing sortings *2100	0 / 0	(无)
	1470	P1284E New Year and Castle Construction combinatorics geometry math sortings *2500	0 / 0	(无)
	1469	P1284F New Year and Social Network data structures graph matchings graphs math trees *3200	0 / 0	(无)
	1468	P1284G Seollal graphs *3300	0 / 0	(无)
	1467	P1285A Mezo Playing Zoma math *800	0 / 0	(无)
	1466	P1285B Just Eat It! dp greedy implementation *1300	0 / 0	(无)
	1465	P1285C Fadi and LCM brute force math number theory *1400	0 / 0	(无)
	1464	P1285D Dr bitmasks brute force dfs and similar divide and conquer dp greedy strings trees *1900	0 / 0	(无)
	1463	P1285E Delete a Segment brute force constructive algorithms data structures dp graphs sortings trees two pointers *2300	0 / 0	(无)
	1462	P1285F Classical? binary search combinatorics number theory *2900	0 / 0	(无)
	1461	P1286A Garland dp greedy sortings *1800	0 / 0	(无)
	1460	P1286B Numbers on Tree constructive algorithms data structures dfs and similar graphs greedy trees *1800	0 / 0	(无)
	1459	P1286C1 Madhouse (Easy version) brute force constructive algorithms interactive math *2400	0 / 0	(无)
	1458	P1286C2 Madhouse (Hard version) brute force constructive algorithms hashing interactive math *2800	0 / 0	(无)
	1457	P1286D LCC data structures math matrices probabilities *3100	0 / 0	(无)
	1456	P1286E Fedya the Potter Strikes Back data structures strings *3200	0 / 0	(无)
	1455	P1286F Harry The Potter brute force constructive algorithms dp fft implementation math *3100	0 / 0	(无)
	1454	P1287A Angry Students greedy implementation *800	0 / 0	(无)
	1453	P1287B Hyperset brute force data structures implementation *1500	0 / 0	(无)
	1452	P1288A Deadline binary search brute force math ternary search *1100	0 / 0	(无)
	1451	P1288B Yet Another Meme Problem math *1100	0 / 0	(无)
	1450	P1288C Two Arrays combinatorics dp *1600	0 / 0	(无)
	1449	P1288D Minimax Problem binary search bitmasks dp *2000	0 / 0	(无)
	1448	P1288E Messenger Simulator data structures *2000	0 / 0	(无)
	1447	P1288F Red-Blue Graph constructive algorithms flows *2900	0 / 0	(无)
	1446	P1290A Mind Control brute force data structures implementation *1600	0 / 0	(无)
	1445	P1290B Irreducible Anagrams binary search constructive algorithms data structures strings two pointers *1800	0 / 0	(无)
	1444	P1290C Prefix Enlightenment dfs and similar dsu graphs *2400	0 / 0	(无)
	1443	P1290D Coffee Varieties (hard version) constructive algorithms graphs interactive *3000	0 / 0	(无)
	1442	P1290E Cartesian Tree data structures *3300	0 / 0	(无)
	1441	P1290F Making Shapes dp *3500	0 / 0	(无)
	1440	P1291A Even But Not Even greedy math strings *900	0 / 0	(无)
	1439	P1291B Array Sharpening greedy implementation *1300	0 / 0	(无)
	1438	P1291F Coffee Varieties (easy version) graphs interactive *2800	0 / 0	(无)
	1437	P1292A NEKO's Maze Game data structures dsu implementation *1400	0 / 0	(无)
	1436	P1292B Aroma's Search brute force constructive algorithms geometry greedy implementation *1700	0 / 0	(无)
	1435	P1292C Xenon's Attack on the Gangs combinatorics dfs and similar dp greedy trees *2300	0 / 0	(无)
	1434	P1292D Chaotic V. dp graphs greedy math number theory trees *2700	0 / 0	(无)
	1433	P1292E Rin and The Unknown Flower constructive algorithms greedy interactive math *3500	0 / 0	(无)
	1432	P1292F Nora's Toy Boxes bitmasks combinatorics dp *3500	0 / 0	(无)
	1431	P1293A ConneR and the A.R.C binary search brute force implementation *1100	0 / 0	(无)
	1430	P1293B JOE is on TV! combinatorics greedy math *1000	0 / 0	(无)
	1429	P1294A Collecting Coins math *800	0 / 0	(无)
	1428	P1294B Collecting Packages implementation sortings *1200	0 / 0	(无)
	1427	P1294C Product of Three Numbers greedy math number theory *1300	0 / 0	(无)
	1426	P1294D MEX maximizing data structures greedy implementation math *1600	0 / 0	(无)
	1425	P1294E Obtain a Permutation greedy implementation math *1900	0 / 0	(无)
	1424	P1294F Three Paths on a Tree dfs and similar dp greedy trees *2000	0 / 0	(无)
	1423	P1295A Display The Number greedy *900	0 / 0	(无)
	1422	P1295B Infinite Prefixes math strings *1700	0 / 0	(无)
	1421	P1295C Obtain The String dp greedy strings *1600	0 / 0	(无)
	1420	P1295D Same GCDs math number theory *1800	0 / 0	(无)
	1419	P1295E Permutation Separation data structures divide and conquer *2200	0 / 0	(无)
	1418	P1295F Good Contest combinatorics dp probabilities *2700	0 / 0	(无)
	1417	P1296A Array with Odd Sum math *800	0 / 0	(无)
	1416	P1296B Food Buying math *900	0 / 0	(无)
	1415	P1296C Yet Another Walking Robot data structures implementation *1500	0 / 0	(无)
	1414	P1296D Fight with Monsters greedy sortings *1500	0 / 0	(无)
	1413	P1296E1 String Coloring (easy version) constructive algorithms dp graphs greedy sortings *1800	0 / 0	(无)
	1412	P1296E2 String Coloring (hard version) data structures dp *2000	0 / 0	(无)
	1411	P1296F Berland Beauty constructive algorithms dfs and similar greedy sortings trees *2100	0 / 0	(无)
	1410	P1297A Likes Display *special problem implementation	0 / 0	(无)
	1409	P1297B Cartoons *special problem implementation sortings	0 / 0	(无)
	1408	P1297C Dream Team *special problem greedy	0 / 0	(无)
	1407	P1297D Bonus Distribution *special problem binary search greedy sortings	0 / 0	(无)
	1406	P1297E Modernization of Treeland *special problem dfs and similar trees	0 / 0	(无)
	1405	P1297F Movie Fan *special problem data structures greedy implementation sortings	0 / 0	(无)
	1404	P1297G M-numbers *special problem dp math	0 / 0	(无)
	1403	P1297H Paint the String *special problem dp strings	0 / 0	(无)
	1402	P1297I Falling Blocks *special problem data structures	0 / 0	(无)
	1401	P1299A Anu Has a Function brute force greedy math *1500	0 / 0	(无)
	1400	P1299B Aerodynamic geometry *1800	0 / 0	(无)
	1399	P1299C Water Balance data structures geometry greedy *2100	0 / 0	(无)
	1398	P1299D Around the World bitmasks combinatorics dfs and similar dp graphs graphs math trees *3000	0 / 0	(无)
	1397	P1299E So Mean interactive math *3400	0 / 0	(无)
	1396	P1300A Non-zero implementation math *800	0 / 0	(无)
	1395	P1300B Assigning to Classes greedy implementation sortings *1000	0 / 0	(无)

HGNU

根据当前过滤条件随机选择一道题

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开发与维护

杨旭龙、王树淳、王国斌、宋文宇、朱天伦

特别鸣谢

肖飞、关玉蓉、魏银珍、周芬

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