USACO 2004 Open The Cow Lineup /// oj25965
题目大意:
输入n k,n头牛 k个品种
接下来n行描述每头牛的品种
输出无法找出的最短子序列的长度
14 5
1
5
3
2
5
1
3
4
4
2
5
1
2
3
3
All the single digit 'sequences' appear. Each of the 25 two digit sequences also appears. Of the three digit sequences, the sequence 2, 2, 4 does not appear.
#include<bits/stdc++.h>
#define INF 0x3f3f3f3f
using namespace std;
int main(){
int n,k;
while(~scanf("%d%d",&n,&k))
{
int ans=,flag[],tmp,t=;
memset(flag,INF,sizeof(flag));
while(n--)
{
scanf("%d",&tmp);
if(flag[tmp]!=ans)
{
flag[tmp]=ans;
if(++t==k) ans++,t=;
//printf("tmp:%d flag[tmp]:%d ans:%d\n",tmp,flag[tmp],ans);
}
}
printf("%d\n",ans);
}
return ;
}
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