#include <bits/stdc++.h>
using namespace std;
#define sp << " " <<
#define int long long
#define vi vector<int>
#define pb push_back
#define F(xxx,yyy) for (int xxx=1;xxx<=yyy;xxx++)
#define pii pair<int,int>
const int N = 1e3+1;
vi dad(N);
int find(int x) {
if (x == dad[x]) return x;
return dad[x] = find(dad[x]);
}
void unite(int x,int y) {
dad[find(x)] = find(y);
}
void solve() {
int n;
cin >> n;
vector<pair<pii,double>> edg;
vi x(n+1),y(n+1);
for (int i=1;i<=n;i++) cin >> x[i] >> y[i];
for (int i=1;i<=n;i++) {
for (int j=i+1;j<=n;j++) {
int dx = x[i]-x[j];
int dy = y[i]-y[j];
edg.pb({{i,j},sqrtl(dx*dx+dy*dy)});
cout << i sp j sp sqrtl(dx*dx+dy*dy) << endl;
}
}
double l = 0;
double r = 1e9;
double eps = 1e-8;
cout << setprecision(12);
while (l<=r) {
double v = (l+r)/2;
for (int i=1;i<=n;i++) dad[i] = i;;
for (auto it : edg) {
if (it.second <= 2*v) {
unite(it.first.first,it.first.second);
cout << it.first.first sp it.first.second << endl;
}
}
int c = 1;
for (int i=1;i<=n;i++) c&=(find(i) == find(1));
if (c) r = v-eps;
else l = v+eps;
}
cout << l << endl;
}
signed main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int t = 1;
//cin >> t;
while (t --> 0) solve();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Incorrect |
2 ms |
348 KB |
Output isn't correct |
| 3 |
Incorrect |
47 ms |
680 KB |
Output isn't correct |
| 4 |
Incorrect |
70 ms |
852 KB |
Output isn't correct |
| 5 |
Incorrect |
40 ms |
860 KB |
Output isn't correct |
| 6 |
Execution timed out |
1064 ms |
10988 KB |
Time limit exceeded |
| 7 |
Execution timed out |
1067 ms |
11156 KB |
Time limit exceeded |
| 8 |
Execution timed out |
1034 ms |
17288 KB |
Time limit exceeded |
| 9 |
Execution timed out |
1043 ms |
20544 KB |
Time limit exceeded |
| 10 |
Execution timed out |
1063 ms |
23044 KB |
Time limit exceeded |
