HDU5414——字符串思维题——CRB and String

http://acm.hdu.edu.cn/showproblem.php?pid=5414

/************************************************
* Author        :Powatr
* Created Time  :2015-8-21 10:45:46
* File Name     :1009.cpp
 ************************************************/

#include <cstdio>
#include <algorithm>
#include <iostream>
#include <sstream>
#include <cstring>
#include <cmath>
#include <string>
#include <vector>
#include <queue>
#include <deque>
#include <stack>
#include <list>
#include <map>
#include <set>
#include <bitset>
#include <cstdlib>
#include <ctime>
using namespace std;

#define lson l, mid, rt << 1
#define rson mid + 1, r, rt << 1 | 1
typedef long long ll;
const int MAXN = 1e5 + 10;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;

char s[MAXN], t[MAXN];
int len1, len2;
bool solve()
{
    int i, j;
    for(i = 1 ; i < len2; i++){
        if(t[i] != t[0]) break;
    }
    for(j = 0; j < i; j++){
        if(s[j] != t[j]) return 0;
    }
    while(j < len1){
        for( ;i < len2; i++){
            if(t[i] == s[j]) break;
        }
        if(i == len2) return 0;
        i++, j++;
    }
    return 1;
}
int main(){
    int T;
    for(scanf("%d", &T);T--;){
        scanf("%s%s", s, t);
         len1 = strlen(s);
         len2 = strlen(t);
        if(solve()){
            puts("Yes");
        }
        else puts("No");
    }
    return 0;
}