HDU 5414 CRB and String

#include<conio.h>
#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<=b;++i)
const int maxn=1e5+5;
char a[maxn],b[maxn];
bool check()
{
    int la=strlen(a),lb=strlen(b);
    int i=0,j=0;
    while(i<la-1&&a[i]==a[i+1])i++;
    while(j<lb-1&&b[j]==b[j+1])j++;
    if(i<j||a[0]!=b[0])return false;
    i=++j;
    for(;i<la;++i,++j)
    {
        while(j<lb&&b[j]!=a[i])j++;
        if(j==lb)return false;
    }
    return true;
}
int main()
{
    //freopen("Input.txt","r",stdin);
    int T;scanf("%d",&T);
    while(T--)
    {
        scanf("%s%s",a,b);
        if(check())printf("Yes
");
        else printf("No
");
    }
}