我不懂
by Ykimna @ 2019-01-25 16:56:53
@[my亦客♂](/space/show?uid=107297) # 红名大佬！！
by 闻染 @ 2019-01-25 17:01:27
头像好评
by suyiheng @ 2019-01-25 17:03:04
```cpp
#include<iostream>
#include<cstdio>
using namespace std;
const int ok=50005;
int l,n,m,a[ok],ans;
bool check(int x)
{
int tot=0,i=0,now=0;
while(i<n+1)
{
i++;
if(a[i]-a[now]<x)
tot++;
else
now=i;
}
return tot<=m;
}
int main()
{
cin>>l>>n>>m;
for(int i=1;i<=n;i++)
cin>>a[i];
a[n+1]=l;
int low=1,up=l,mid=0;
while(low<=up)
{
mid=(low+up)/2;
if(check(mid))
{
ans=mid;
low=mid+1;
}
else
up=mid-1;
}
cout<<ans<<endl;
return 0;
}
```
by Hexarhy @ 2019-01-25 17:07:00