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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 |
---|---|---|---|---|---|---|---|---|---|
#676151 | #9462. Safest Buildings | wjy# | WA | 2ms | 3688kb | C++23 | 1021b | 2024-10-25 20:27:50 | 2024-10-25 20:27:50 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
#define pldld pair<ld, ld>
#define x first
#define y second
const ld eps = 1e-20;
ld dist(pldld a, pldld b) {
return sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y));
}
void solve() {
ld n, R, r; cin >> n >> R >> r;
vector<pldld> b(n); vector<ld> d(n);
ld mn = 2e4 + 10;
for (int i = 0; i < n; i++) {
cin >> b[i].x >> b[i].y;
d[i] = dist(b[i], {0, 0});
mn = min(mn, d[i]);
}
vector<int> ans;
for (int i = 0; i < n; i++) {
if (fabs(d[i] - mn) <= eps) ans.push_back(i);
}
if (mn < R - 2 * r || fabs(mn - R + 2 * r) <= eps) {
ans.clear();
for (int i = 0; i < n; i++) if (d[i] < R - 2 * r || fabs(d[i] - R + 2 * r) <= eps) ans.push_back(i);
}
cout << ans.size() << '\n';
for (int i : ans) {
cout << i + 1; if (i != *(ans.rbegin())) cout << ' ';
} cout << '\n';
}
int main() {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
int T; cin >> T;
while (T--) solve();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3688kb
input:
2 3 10 5 3 4 3 5 3 6 3 10 4 -7 -6 4 5 5 4
output:
1 1 2 2 3
result:
ok 5 tokens
Test #2:
score: -100
Wrong Answer
time: 2ms
memory: 3688kb
input:
100 6 100 50 42 -31 -66 7 13 84 94 13 51 -14 -18 9 12 100 50 -78 56 -56 -64 -22 54 -41 14 -14 55 21 -83 75 21 -51 56 -31 74 -34 79 22 -37 1 -12 14 100 50 15 71 -44 41 -56 78 -48 22 42 -2 -70 28 51 -34 49 -31 -36 67 63 70 34 9 27 -33 36 -93 -52 -19 8 100 14 21 89 67 60 -12 -3 24 -37 -51 14 -30 8 -75 ...
output:
1 6 1 12 1 11 4 3 4 5 6 7 1 4 6 8 9 12 13 1 1 1 5 1 9 1 11 1 5 1 29 1 5 1 29 47 1 2 3 4 5 6 7 9 10 11 12 14 17 18 19 21 22 24 25 26 27 28 30 31 32 33 34 35 36 37 38 39 40 41 43 44 45 46 47 48 50 51 52 53 54 55 56 2 21 29 20 1 5 6 7 10 13 14 18 21 25 26 30 33 35 37 38 41 43 45 48 1 29 1 14 1 14 1 13 ...
result:
wrong answer 22nd words differ - expected: '6', found: '1'