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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     ios_base::sync_with_stdio(false); cin.tie(NULL);
  7.     int n;
  8.     cin >> n;
  9.     while (n--)
  10.     {
  11.         string s,t;
  12.         cin >> s >> t;
  13.         if (s.length() != t.length()) cout << 0 << '\n';
  14.         else 
  15.         {
  16.             bool kt = true;
  17.             for (int i = 0; i < s.length(); i++)
  18.                 if (s[i] == '?' || t[i] == '?') continue;
  19.                 else if (s[i] != t[i])
  20.                 {
  21.                     kt = false;
  22.                     break;
  23.                 }
  24.             if (kt) cout << 1 << '\n';
  25.             else cout << 0 << '\n';
  26.         }
  27.     }
  28.     return 0;
  29. }
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