$$ \#5的数据是只有l=1,r=500才行 $$
$特判$
by xingcode @ 2024-03-19 20:48:59
@[Channel_09](/user/787888)
```
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=2005;
int tot[N],m,cnt[N],minn=1e18,a[(int)1e6],l,r;
signed main(){
int n;
cin>>n>>m;
for(int i=1;i<=n;i++){
cin>>a[i];
}
int rt=0,lt=1,tmp=0;
while(rt<n){
while(tmp<m && rt<n){
rt++;
cnt[a[rt]]++;
if(cnt[a[rt]]==1){
tmp++;
}
}
while(tmp==m && lt<=rt){
int x=minn;
minn=min(minn,rt-lt+1);
if(minn!=x){
l=lt,r=rt;
}
cnt[a[lt]]--;
if(cnt[a[lt]]==0){
tmp--;
}
lt++;
}
}
cout<<l<<" "<<r;
return 0;
}
```
by huangmingyisunny1804 @ 2024-03-27 18:20:13