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LCA板子题 #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.1415926535897932384626433832795; const double eln =
3.7k字3 分钟

想起还有道CF计数题没补… 题意是求，jls的取模整数板子好像有些问题。 #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.1415926535897932384626433
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题目链接 #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.1415926535897932384626433832795; const double eln =
1.7k字2 分钟

dsu on tree #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.1415926535897932384626433832795; const double eln
2.1k字2 分钟

码力有待加强！ //1787 D. Game on Axis #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.141592653589793238462