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  1. #include <iostream>
  2. using namespace std;
  3. int main() {
  4.     ios_base::sync_with_stdio(0);  cin.tie(0); cout.tie(0);
  5.  
  6.     string s1, s2;
  7.     cin >> s1 >> s2;
  8.     if (s2.length() == s1.length() + 1) {
  9.         bool flag = false;
  10.         int i = 0, j = 0;
  11.  
  12.         while (i < s1.length() && j < s2.length()) {
  13.             if (s1[i] != s2[j]) {
  14.                 if (flag) {
  15.                     cout << "No\n";
  16.                     return 0;
  17.                 }
  18.                 flag = true;
  19.                 j++; 
  20.             } else {
  21.                 i++;
  22.                 j++;
  23.             }
  24.         }
  25.         cout << "Yes\n";
  26.     } else {
  27.         cout << "No\n";
  28.     }
  29.  
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0s 5284KB
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Standard input is empty
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https://ideone.com/Y59WoN
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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