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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     char firstName[50], lastName[50], fullName[120];
  6.  
  7.     cout << "Enter first name: ";
  8.     cin >> firstName;
  9.  
  10.     cout << "Enter last name: ";
  11.     cin >> lastName;
  12.  
  13.     // Manual concatenation
  14.     int i = 0, j = 0;
  15.  
  16.     // Copy first name into fullName
  17.     while (firstName[i] != '\0') {
  18.         fullName[j] = firstName[i];
  19.         i++;
  20.         j++;
  21.     }
  22.  
  23.     // Add space
  24.     fullName[j] = ' ';
  25.     j++;
  26.  
  27.     // Reset i for last name
  28.     i = 0;
  29.  
  30.     // Copy last name into fullName
  31.     while (lastName[i] != '\0') {
  32.         fullName[j] = lastName[i];
  33.         i++;
  34.         j++;
  35.     }
  36.  
  37.     // Null terminate the final string
  38.     fullName[j] = '\0';
  39.  
  40.     cout << "\nConcatenated Full Name: " << fullName << endl;
  41.  
  42.     return 0;
  43. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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Dexter 
Morgan
stdout
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Enter first name: Enter last name: 
Concatenated Full Name: Dexter Morgan
https://ideone.com/mouHRh
language:
C++ (gcc 8.3)
created:
10 hours ago
visibility:
public

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