C++ Exercises: Create a new string which is n copies of the first 3 characters of a given string
C++ Basic Algorithm: Exercise-25 with Solution
n Copies of First 3 Characters
Write a C++ program to create another string which is n (non-negative integer) copies of the first 3 characters of a given string. If the length of the given string is less than 3 then return n copies of the string.
Sample Solution:
C++ Code :
#include <iostream>
using namespace std;
// Function to create a string concatenating the initial portion of 's' 'n' times
string test(string s, int n)
{
string result = " "; // Initialize a string 'result' with a space character
int frontOfString = 3; // Variable to store the length of the initial portion of 's'
// Ensure 'frontOfString' is within the length of the input string 's'
if (frontOfString > s.length())
frontOfString = s.length();
string front = s.substr(0, frontOfString); // Extract the initial portion of 's'
// Concatenate the 'front' substring 'n' times to 'result'
for (int i = 0; i < n; i++)
{
result += front; // Append 'front' to 'result'
}
return result; // Return the final concatenated string 'result'
}
// Main function
int main()
{
// Output the result of the test function with different input strings and numbers
cout << test("Python", 2) << endl;
cout << test("Python", 3) << endl;
cout << test("JS", 3) << endl;
return 0; // Return 0 to indicate successful execution of the program
}
Sample Output:
PytPyt PytPytPyt JSJSJS
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