w3resource

C++ Exercises: Concat two given strings

C++ Basic Algorithm: Exercise-76 with Solution

Write a C++ program to concat two given strings. If the given strings have different length remove the characters from the longer string.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

 string test(string s1, string s2)
        {
            if (s1.length() < s2.length())
            {
                return s1 + s2.substr(s2.length() - s1.length());
            }
            else if (s1.length() > s2.length())
            {
                return s1.substr(s1.length() - s2.length()) + s2;
            }
            else
            {
                return s1 + s2;
            }
        }
        
int main() 
 {
  cout << test("abc", "abcd") << endl;  
  cout << test("Python", "Python") << endl; 
  cout << test("JS", "Python") << endl;  
  return 0;    
}

Sample Output:

abcbcd
PythonPython
JSon

Pictorial Presentation:

C++ Basic Algorithm Exercises: Concat two given strings.

Flowchart:

Flowchart: Concat two given strings.

C++ Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a C++ program to check whether the first two characters and last two characters of a given string are same.
Next: Write a C++ program to create a new string using 3 copies of the first 2 characters of a given string. If the length of the given string is less than 2 use the whole string.

What is the difficulty level of this exercise?