由于是子序列,那么难度就在于读入
#include<cstdio>
#include<algorithm>
#include<cstring>
using namespace std;
char s[9]={'l','u','v','l','e','t','t','e','r'};
int main(){
int T;
scanf("%d",&T);
char c=getchar();
while (T--){
int ID=0,ans=0;
char c='-';
while (c!='\n'){
c=getchar();
if (c==s[ID]) ID++;
if (ID==9) ans++,ID=0;
}
printf("%d\n",ans);
}
return 0;
}