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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #189229 | #6639. Disk Tree | ucup-team004 | WA | 1ms | 3552kb | C++20 | 2.4kb | 2023-09-27 01:52:25 | 2023-09-27 01:52:25 |
Judging History
answer
#include <bits/stdc++.h>
using i64 = long long;
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n;
std::cin >> n;
std::vector<int> x(n), y(n), R(n);
for (int i = 0; i < n; i++) {
std::cin >> x[i] >> y[i] >> R[i];
}
auto cmp = [&](int i, int j) {
return y[i] < y[j];
};
std::set<int, decltype(cmp)> s(cmp);
int lst = -1;
std::vector<std::array<int, 4>> a;
for (int i = 0; i < n; i++) {
a.push_back({std::max(x[i] - R[i], 0), 0, y[i], i});
a.push_back({std::min(x[i] + R[i], int(1E9)), 1, y[i], i});
}
std::vector<std::array<int, 4>> ans;
std::sort(a.begin(), a.end());
for (int l = 0, r = 0; l < a.size(); l = r) {
while (r < a.size() && a[l][0] == a[r][0] && a[l][1] == a[r][1]) {
r++;
}
if (a[l][1] == 1) {
for (int i = l; i < r; i++) {
s.erase(a[i][3]);
}
lst = a[l][3];
} else {
for (int i = l; i < r; i++) {
auto it = s.lower_bound(a[i][3]);
if (it != s.begin()) {
int j = *std::prev(it);
if (i > l && y[j] < a[i - 1][2]) {
ans.push_back({a[i][0], a[i][2], a[i - 1][0], a[i - 1][2]});
} else {
ans.push_back({a[i][0], a[i][2], a[i][0], y[j]});
}
} else if (it != s.end()) {
int j = *it;
if (i < r - 1 && y[j] > a[i + 1][2]) {
ans.push_back({a[i][0], a[i][2], a[i + 1][0], a[i + 1][2]});
} else {
ans.push_back({a[i][0], a[i][2], a[i][0], y[j]});
}
} else if (i > 0) {
ans.push_back({a[i][0], a[i][2], a[i - 1][0], a[i - 1][2]});
}
}
if (s.empty() && lst != -1) {
ans.push_back({a[l][0], a[l][2], x[lst] + R[lst], y[lst]});
}
for (int i = l; i < r; i++) {
s.insert(a[i][3]);
}
}
}
std::cout << "YES\n";
for (auto [a, b, c, d] : ans) {
std::cout << a << " " << b << " " << c << " " << d << "\n";
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3552kb
input:
3 1 0 3 10 10 6 0 5 1
output:
YES 0 5 0 0 4 10 4 0
result:
ok answer = 1
Test #2:
score: 0
Accepted
time: 1ms
memory: 3448kb
input:
2 1 1 1 3 3 1
output:
YES 2 3 2 1
result:
ok answer = 1
Test #3:
score: 0
Accepted
time: 0ms
memory: 3516kb
input:
5 10 10 10 2 0 1 20 20 1 3 20 1 20 0 1
output:
YES 1 0 1 10 2 20 2 10 19 0 19 10 19 20 19 10
result:
ok answer = 1
Test #4:
score: -100
Wrong Answer
time: 0ms
memory: 3452kb
input:
10 29 29 2 28 55 10 99 81 4 17 82 10 45 88 10 48 68 10 0 8 10 98 95 10 34 0 10 17 24 10
output:
YES 7 24 7 8 7 82 7 24 18 55 18 24 24 0 24 24 27 29 27 24 35 88 35 55 38 68 38 55 88 95 58 68 88 95 58 68 95 81 95 95
result:
wrong answer Two line segments intersect, and it's not only the endpoints that intersect or line segments intersects/touches more than 2 disks