C++ Exercises: Create a new string using two given strings s1, s2, the format of the new string will be s1s2s2s1

Last update on April 07 2025 12:56:41 (UTC/GMT +8 hours)

String Format s1s2s2s1

Write a C++ program to create another string using two given strings s1, s2, the format of the new string will be s1s2s2s1.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

// Function 'test' concatenates strings and creates a new string based on the input
string test(string s1, string s2)
{
    return s1 + s2 + s2 + s1; // Concatenates s1, s2, s2, and s1 in the given order
}

// Main function to test the 'test' function
int main() 
{
    // Displays the output of the 'test' function for different string inputs
    cout << test("Hi", "Hello") << endl;    // Output: "HiHelloHelloHi" (concatenation of strings)
    cout << test("whats", "app") << endl;   // Output: "whatsappappwhats" (concatenation of strings)
    return 0;    
}

Sample Output:

HiHelloHelloHi
whatsappappwhats

Visual Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C++ program to concatenate two strings into a new string in the format s1 + s2 + s2 + s1.
• Write a C++ program that reads two strings and constructs a new string by sandwiching s2 between two copies of s1.
• Write a C++ program to generate a patterned string where the second string is duplicated and placed between two instances of the first string.
• Write a C++ program that accepts two inputs and outputs a combined string in the order s1, s2, s2, s1, ensuring proper concatenation.

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