#include <bits/stdc++.h>
#include <stdio.h>
using namespace std;
#define f1 first
#define s2 second
#define INF 1e9+10
#define ll long long
#define pb push_back
#define fri(a) freopen(a,"r",stdin)
#define fro(a) freopen(a,"w",stdout)
const int N=2e5+5;
int n,a,b,p[N];
vector<pair<int,int>>v;
vector<pair<long double,pair<int,int>>>u;
long double ans;
long double calc(pair<int,int>x,pair<int,int>y){
return sqrt(abs((x.f1-y.f1)*(x.f1-y.f1))+abs((x.s2-y.s2)*(x.s2-y.s2)));
}
int parent(int x){
if(x==p[x])return x;
p[x]=parent(p[x]);
return p[x];
}
long double dsu(pair<long double,pair<int,int>> pp){
int x=pp.s2.f1;
int y=pp.s2.s2;
int px=parent(x);
int py=parent(y);
if(px!=py){
p[x]=py;
return pp.f1;
}
else return 0.0;
}
void solve(){
cin>>n;
for(int i=0;i<n;i++){
p[i]=i;
cin>>a>>b;
v.pb({a,b});
for(int j=i-1;j>=0;j--){
u.pb({calc(v[i],v[j]),{i,j}});
}
}
sort(u.begin(),u.end());
for(int i=0;i<u.size();i++){
ans=max(ans,dsu(u[i]));
}
cout.precision(20);
cout<<ans/2.0<<endl;
}
int main(){
//fri("in.txt");
//fro("out.txt");
solve();
return 0;
}
Compilation message
odasiljaci.cpp: In function 'void solve()':
odasiljaci.cpp:52:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long double, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | for(int i=0;i<u.size();i++){
| ~^~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
| 4 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 5 |
Incorrect |
2 ms |
748 KB |
Output isn't correct |
| 6 |
Incorrect |
32 ms |
4572 KB |
Output isn't correct |
| 7 |
Incorrect |
33 ms |
4572 KB |
Output isn't correct |
| 8 |
Incorrect |
79 ms |
16852 KB |
Output isn't correct |
| 9 |
Incorrect |
124 ms |
16852 KB |
Output isn't correct |
| 10 |
Incorrect |
119 ms |
16852 KB |
Output isn't correct |
