func_code_string: #include <bits/stdc++.h>   using namespace std;   long long MOD(long long, long long);   void doublesetprecision(double, int);   bool isEven(long long);   int gcd(int, int);   int n, m, o, ans, k;   int a[1000000];   void solve() {     string s, t;     cin >> s >> t;     if (s == t) {       cout <<  yes ;       return;     }     if (s.size() != t.size()) {       cout <<  no ;       return;     }     int hs[26] = {0}, ht[26] = {0};     for (long long i = 0; i < s.size(); i++) hs[s[i] -  a ]++;     for (long long i = 0; i < t.size(); i++) ht[t[i] -  a ]++;     for (long long i = 0; i < 26; i++) {       if (ht[i] > 0 && hs[i] > 0) {         cout <<  yes ;         return;       }     }     cout <<  no ;   }   int main() {     int t = 1;     scanf( %d , &t);     while (t--) {       solve();       cout <<   n ;     }     return 0;   }   bool isEven(long long n) {     if (n % 2 == 0) return 1;     return 0;   }   void doublesetprecision(double x, int p) {     cout << fixed << setprecision(p) << x;   }   long long MOD(long long x, long long M) {     x = x % M;     if (x < 0) x += M;     return x;   }   int gcd(int a, int b) { return b ? gcd(b, a % b) : a; }   