HDU - 5284 wyh2000 and a string problem

Young theoretical computer scientist wyh2000 is teaching young pupils some basic concepts about strings.

A subsequence of a string ss is a string that can be derived from ss by deleting some characters without changing the order of the remaining characters. You can delete all the characters or none, or only some of the characters.

He also teaches the pupils how to determine if a string is a subsequence of another string. For example, when you are asked to judge whether wyhwyh is a subsequence of some string or not, you just need to find a character ww, a yy, and an hh, so that the ww is in front of the yy, and the yy is in front of the hh.

One day a pupil holding a string asks him, "Is wyhwyh a subsequence of this string?"
However, wyh2000 has severe myopia. If there are two or more consecutive character vvs, then he would see it as one ww. For example, the string vvvvvv will be seen as ww, the string vvwvvvvvwvvv will be seen as wwwwww, and the string vwvvvwvv will be seen as vwwvww.

How would wyh2000 answer this question? Input

The first line of the input contains an integer T(T≤105)T(T≤105), denoting the number of testcases.

NN lines follow, each line contains a string.

Total string length will not exceed 3145728. Strings contain only lowercase letters.

The length of hack input must be no more than 100000.

Output

For each string, you should output one line containing one word. Output YesYes if wyh2000 would consider wyhwyh as a subsequence of it, or NoNo otherwise.

Sample Input

4
woshiyangli
woyeshiyangli
vvuuyeh
vuvuyeh

Sample Output

No
Yes
Yes
No

水题 理解题意 按描述处理字符串....

AC代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
char s[4000005];
int main()
{
    int t,temp[5],i,n;
    scanf("%d",&t);
    getchar();
    while(t--)
    {
        gets(s);
        n=strlen(s);
        memset(temp,0,sizeof(temp));
        for(i=0;i<n;i++)
        {
            if(s[i]=='w'||(s[i]=='v'&&s[i+1]=='v'))
            {
                temp[1]++;
            }
            else if(s[i]=='y'&&temp[1]!=0)
            {
                temp[2]++;
            }
            else if(s[i]=='h'&&temp[1]!=0&&temp[2]!=0)
            {
                temp[3]++;
            }
            if(temp[1]!=0&&temp[2]!=0&&temp[3]!=0)
            {
                printf("Yes\n");
                break;
            }
        }
        if(temp[1]==0||temp[2]==0||temp[3]==0)
        {
            printf("No\n");
        }
    }
    return 0;
}