模拟

#include<bits/stdc++.h>
using namespace std;
bool cat(string s,int l){
    for(int i = 0;i < l;i++){
        if(!(s[i] == 'm' || s[i] == 'M' || s[i] == 'e' || s[i] == 'E' || s[i] == 'o' || s[i] == 'O' || s[i] == 'w' || s[i] == 'W')) return false;
    }
    string key = "meow";
    string key2 = "MEOW";
    char lastkey = 'm';
    int idx = 0;
    for(int i = 0;i < l;i++){
        if(idx == 3) return true;
        if(s[i] == key[idx] || s[i] == key2[idx]){
            idx++;
            if(s[i] >= 'a' && s[i] <= 'z') lastkey = s[i];
            else lastkey = (char)(s[i] + 32);
        }else if(!(s[i] == lastkey || s[i] + 32 == lastkey)) return false;
    }
    return false;
}
int main(){
    int T; cin >> T;
    while(T--){
        int size; cin >> size;
        string s; cin >> s;
        if(cat(s,size)) cout << "YES";
        else cout << "NO";
        cout << endl;
    }
    return 0;
}