poj 1575 Easier Done Than Said?

poj 1575 Easier Done Than Said?

#include <iostream>#include <cstdio>#include <cstdlib>#include <cstring>using namespace std;char st[50];bool v(char a){    return a =='a' ||a =='e' ||a =='i' ||a =='o' ||a =='u';}bool accept(){    int n = strlen(st);    bool found = false;    for (int i = 0; i < n; i++)        if (v(st[i]))        { found = true; break;        }    if (!found)        return false;    int count = 1;    for (int i = 1; i < n; i++)    {        if (v(st[i]) == v(st[i - 1])) count++;        else count = 1;        if (count >= 3) return false;    }    for (int i = 1; i < n; i++)        if (st[i] == st[i - 1] && st[i] != 'e' && st[i] != 'o') return false;    return true;}int main(){    while (scanf("%s", st), strcmp(st, "end"))    {        if (accept()) printf("<%s> is acceptable.n", st);        else printf("<%s> is not acceptable.n", st);    }    return 0;}