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{"workbook":{"problemsBrief":"{\"CodeForces-1051F\":[\"The Shortest Statement\",2890,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/1051\\\"\\u003eEducational Codeforces Round 51 (Rated for Div. 2)\\u003c/a\\u003e\"],\"CodeForces-1304E\":[\"1-Trees and Queries\",5072,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/1304\\\"\\u003eCodeforces Round 620 (Div. 2)\\u003c/a\\u003e\"],\"CodeForces-343E\":[\"Pumping Stations\",755,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/343\\\"\\u003eCodeforces Round 200 (Div. 1)\\u003c/a\\u003e\"],\"CodeForces-1702G2\":[\"Passable Paths (hard version)\",4413,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/1702\\\"\\u003eCodeforces Round 805 (Div. 3)\\u003c/a\\u003e\"],\"CodeForces-1702G1\":[\"Passable Paths (easy version)\",5159,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/1702\\\"\\u003eCodeforces Round 805 (Div. 3)\\u003c/a\\u003e\"],\"CodeForces-466E\":[\"Information Graph\",2299,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/466\\\"\\u003eCodeforces Round 266 (Div. 2)\\u003c/a\\u003e\"],\"CodeForces-425D\":[\"Sereja and Squares\",1592,\"\\u003ca style\\u003d\\\"color: black\\\" href\\u003d\\\"https://codeforces.com/contest/425\\\"\\u003eCodeforces Round 243 (Div. 1)\\u003c/a\\u003e\"]}","joined":false,"groups":{}},"managingGroups":{},"author":"lxnhb","updateTime":1713975198000,"title":"最近公共祖先(lca)题单","dislikeCnt":0,"content":"[problem:CodeForces-425D]\n[problem:CodeForces-1051F]\n[problem:CodeForces-343E]\n[problem:CodeForces-1304E]\n[problem:CodeForces-466E]\n[problem:CodeForces-1702G1]\n[problem:CodeForces-1702G2]\n","threadId":190499,"likeCnt":0,"createTime":1713975198000,"isWorkbook":true,"viewCnt":22,"openness":2,"fav":false,"id":4937,"trustable":false}