怎么没人发题解？

#include<bits/stdc++.h>
using namespace std;

int main() {
	string a, b;
    cin >> a >> b;
    string x = "", y = "";
    for (int i = 0; i < a.size(); i++)
        if(a[i] != ' ') x += a[i];
    for (int i = 0; i < b.size(); i++)
        if(b[i] != ' ') y += a[i];
    if(x == y) cout << "YES";
    else cout << "NO";
	return 0;
}