从小到大谢谢
by d3NtMDAw @ 2018-07-12 14:20:16
```c
#include<bits/stdc++.h>
using namespace std;
int n,x,z,i,a[600000];
long long ans=1;
int main()
{
cin>>n>>z;
for(i=0;i<n;i++) cin>>a[i];
sort(a,a+n);
for(i=1;i<n;i++)
{
while((a[i]-z)>a[x] && x<i) x++;
ans*=i-x+1;
ans%=1000000009;
}
cout<<ans;
return 0;
}
```
by 郑涵希 @ 2018-07-14 10:46:18
对不起，发错啦~~~
```c
#include<bits/stdc++.h>
using namespace std;
int main()
{
int x,y,max=0,sum=0,i,j,k;
int n;
cin>>n;
cin>>x;
sum=1;
for (i=2;i<=n;++i)
{
cin>>y;
if (y==x+1)
{
sum++;
if (sum>max)max=sum;
}
else
sum=1;
x=y;
}
if (max==0) cout<<1; else cout<<max;
return 0;
}
```
by 郑涵希 @ 2018-07-14 10:50:05