Codeforces Round #497 (Div. 2) A - Romaji（水题）

原题链接：http://codeforces.com/contest/1008/problem/A

题意：给一个单词，这个单词的每个辅音（除了n）后面都要跟一个元音。

#include <iostream>
#include <cstring>
#include <cstdio>
using namespace std;

int main(){
    string str;
    cin>>str;
    int len = str.length();

    if(str[len-1] != 'a' && str[len-1] != 'e' && str[len-1] != 'i' && str[len-1] != 'o' && str[len-1] != 'u' && str[len-1] != 'n'){
        printf("NO\n");
        return 0;
    }

    for(int i=0;i<len-1;i++){
        if(str[i] != 'a' && str[i] != 'e' && str[i] != 'i' && str[i] != 'o' && str[i] != 'u' && str[i] != 'n'){
            if(str[i+1] == 'a' || str[i+1] == 'e' || str[i+1] == 'i' || str[i+1] == 'o' || str[i+1] == 'u'){
                continue;
            }
            else {
                printf("NO\n");
                return 0;
            }
        }
    }
    printf("YES\n");

    return 0;
}