不会的跟我来。

#include <iostream>
using namespace std;
int main() {
int n, x, count = 1;
cin >> n >> x;
while (n >= 10) {
n /= 10;
count++;
}
if (x == count) {
cout << "Yes" << endl;
} else {
cout << "No" << endl;
}
return 0;
}