mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-11-08 15:18:46 +00:00
#1811. 【2017.3 长乐省选集训 Day10 T1】圆圈游戏
https://sjzezoj.com/submission/66472
This commit is contained in:
parent
dda9cfdeb7
commit
a783b75b9d
104
S2OJ/1811/1811.cpp
Normal file
104
S2OJ/1811/1811.cpp
Normal file
@ -0,0 +1,104 @@
|
||||
#include <iostream>
|
||||
#include <algorithm>
|
||||
#include <cmath>
|
||||
#include <set>
|
||||
#include <tuple>
|
||||
#include <utility>
|
||||
#include <vector>
|
||||
|
||||
using std::cin;
|
||||
using std::cout;
|
||||
const char endl = '\n';
|
||||
|
||||
const int N = 1e5 + 5;
|
||||
|
||||
int n, base, fa[N];
|
||||
std::tuple<int, int, int, int> c[N];
|
||||
std::vector<std::tuple<int, int, bool>> p;
|
||||
std::vector<int> g[N];
|
||||
|
||||
double pos(int id, bool p) {
|
||||
int x, y, r;
|
||||
|
||||
std::tie(x, y, r, std::ignore) = c[id];
|
||||
|
||||
double d = std::sqrt(std::pow(r, 2) - std::pow(base - x, 2));
|
||||
|
||||
if (p) return y - d;
|
||||
return y + d;
|
||||
}
|
||||
|
||||
std::multiset<std::pair<int, bool>, bool (*)(std::pair<int, bool>, std::pair<int, bool>)> set{[](std::pair<int, bool> lhs, std::pair<int, bool> rhs) {
|
||||
return pos(lhs.first, lhs.second) > pos(rhs.first, rhs.second);
|
||||
}};
|
||||
|
||||
int dfs(int u) {
|
||||
int res = 0;
|
||||
|
||||
for (int v : g[u]) {
|
||||
res += dfs(v);
|
||||
}
|
||||
|
||||
return std::max(res, std::get<3>(c[u]));
|
||||
}
|
||||
|
||||
int main() {
|
||||
std::ios::sync_with_stdio(false);
|
||||
cin.tie(nullptr);
|
||||
|
||||
cin >> n;
|
||||
|
||||
for (int i = 1, x, y, r, w; i <= n; i++) {
|
||||
cin >> x >> y >> r >> w;
|
||||
|
||||
c[i] = std::make_tuple(x, y, r, w);
|
||||
p.emplace_back(x - r, i, false);
|
||||
p.emplace_back(x + r, i, true);
|
||||
}
|
||||
|
||||
std::sort(p.begin(), p.end(), [](std::tuple<int, int, bool> lhs, std::tuple<int, int, bool> rhs) {
|
||||
int x1, x2;
|
||||
bool op1, op2;
|
||||
|
||||
std::tie(x1, std::ignore, op1) = lhs;
|
||||
std::tie(x2, std::ignore, op2) = rhs;
|
||||
|
||||
return x1 == x2 ? op1 > op2 : x1 < x2;
|
||||
});
|
||||
|
||||
for (auto o : p) {
|
||||
int x, id, op;
|
||||
|
||||
std::tie(x, id, op) = o;
|
||||
|
||||
if (op) {
|
||||
set.erase({id, 0});
|
||||
set.erase({id, 1});
|
||||
} else {
|
||||
base = x;
|
||||
set.emplace(id, 0);
|
||||
|
||||
auto it = set.find({id, 0});
|
||||
|
||||
if (it != set.begin()) {
|
||||
int id2;
|
||||
bool op2;
|
||||
|
||||
std::tie(id2, op2) = *std::prev(it);
|
||||
|
||||
if (op2) fa[id] = fa[id2];
|
||||
else fa[id] = id2;
|
||||
}
|
||||
|
||||
set.emplace(id, 1);
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 1; i <= n; i++) {
|
||||
g[fa[i]].push_back(i);
|
||||
}
|
||||
|
||||
cout << dfs(0) << endl;
|
||||
|
||||
return 0;
|
||||
}
|
BIN
S2OJ/1811/data/circle1.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle1.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle1.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle1.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle10.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle10.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle10.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle10.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle11.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle11.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle11.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle11.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle12.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle12.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle12.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle12.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle13.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle13.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle13.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle13.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle14.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle14.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle14.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle14.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle15.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle15.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle15.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle15.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle16.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle16.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle16.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle16.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle17.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle17.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle17.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle17.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle18.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle18.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle18.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle18.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle19.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle19.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle19.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle19.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle2.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle2.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle2.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle2.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle20.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle20.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle20.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle20.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle21.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle21.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle21.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle21.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle22.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle22.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle22.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle22.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle23.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle23.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle23.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle23.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle24.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle24.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle24.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle24.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle25.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle25.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle25.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle25.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle3.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle3.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle3.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle3.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle4.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle4.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle4.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle4.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle5.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle5.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle5.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle5.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle6.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle6.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle6.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle6.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle7.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle7.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle7.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle7.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle8.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle8.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle8.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle8.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle9.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle9.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/circle9.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/circle9.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1811/data/problem.conf
(Stored with Git LFS)
Normal file
BIN
S2OJ/1811/data/problem.conf
(Stored with Git LFS)
Normal file
Binary file not shown.
Loading…
Reference in New Issue
Block a user