@[daonan](/user/547513) 用双重循环真的会爆我不骗你
~~给我一点时间修改正解~~
by shaoziqi @ 2022-01-30 10:50:52
AC ：
```cpp
#include<bits/stdc++.h>
using namespace std;
#ifdef ONLINE_JUDGE
static char buf[1000001],*p1=buf,*p2=buf;
#define getchar() p1==p2&&(p2=(p1=buf)+fread(buf,1,1000000,stdin),p1==p2)?EOF:*p1++
#endif
inline int read()
{
char ch=getchar();
long long f=1,res=0;
while(ch<'0'||ch>'9')
{
if(ch=='-') f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9')
res=(res<<1)+(res<<3)+ch-48,ch=getchar();
return res*f;
}
struct node
{
int x=0;
int y=0;
}ex[10005];
int main(){
int n=0;
double num = 1919810;
n=read();
for(int i = 1;i <= n;i++)
{
ex[i].x=read(),ex[i].y=read();
for(int j = i-1;j>0;j--)
{
int x = (ex[i].x - ex[j].x)*(ex[i].x - ex[j].x);
int y = (ex[i].y - ex[j].y)*(ex[i].y - ex[j].y);
if(sqrt(x+y)<num) num=sqrt(x+y);
}
}
printf("%.4f",num);
}
```
by shaoziqi @ 2022-01-30 10:58:49
@[shaoziqi](/user/562804) 确实用快读就能过了qwq，谢谢大佬！
by daonan @ 2022-01-30 11:44:17