40pts玄关
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40pts玄关
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limingx楼主2025/8/3 18:40
#include<iostream>
using namespace std;
int main(){
    int t;
    cin>>t;
    while(t--){
        int a,b;
        cin>>a>>b;
        string str1,str2;
        cin>>str1>>str2;
        if(a>b) cout<<"No"<<endl;
        else if(a==b){
            bool flag=true;
            for(int i=0;i<str1.size();i++){
                if(str1[i]!=str2[i]){
                    flag=false;
                }
            }
            if(flag) cout<<"Yes"<<endl;
            else cout<<"No"<<endl;
        }
        else{
            int i=0,j=0;
            while(i<str1.size()&&j<str2.size()){
                if(str1[i]==str2[j]) i++;
                j++;
            }
            if(i==str1.size()) cout<<"Yes"<<endl;
            else cout<<"No"<<endl;
        }
    }
    return 0;
}

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2025/8/3 18:40
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