挨个儿对着比就行,暴力。
#include <iostream>
#include <string>
using namespace std;
int main()
{
string a, b;
while (cin>>a>>b) {
unsigned long i, j, len1, len2;
len1 = a.length();
len2 = b.length();
i = j = 0;
while (true) {
if (i == len1) {
cout << "Yes" << endl;
break;
}
else if (i < len1 && j == len2)
{
cout << "No" << endl;
break;
}
if (a[i] == b[j]) {
i++;j++;
}
else j++;
}
}
return 0;
}