Concatenate Two Character Arrays
“Concatenate Two Character Arrays” is a basic operation of character array. Here, we are given two Character Array of length ‘n’ and ‘m’. Our task is to concatenate both the Character Array and store the result into resultant Character Array.
Example:
INPUT: String 1: Helpme String 2: studybro OUTPUT: Resultant String: Helpmestudybro
The steps required to Concatenate Two Character Arrays and store the result into resultant string is as follows:
- Create a resultant character array of size same as sum of size of given two character arrays.
- Copy the first character array to resultant character array and mark the index.
- Copy second character array to resultant character array from the marked index+1.
C++ Program to Concatenate Two Character Arrays is as follows:
/* Program to Concatenate Two Character Arrays */
#include<bits/stdc++.h>
using namespace std;
int main()
{
char str1[len],str2[len];
cout<<"Enter the first string:\n";
cin>>str1;
cout<<"Enter the second string:\n";
cin>>str2;
int len1 = strlen(str1);
int len2 = strlen(str2);
int length = len1 + len2 + 1;
char result[length];
int index = 0;
for(int i = 0; i < len1; i++)
{
result[index] = str1[i];
index++;
}
for(int i = 0; i < len2; i++)
{
result[index] = str2[i];
index++;
}
result[index] = ' /* Program to Concatenate Two Character Arrays */ #include<bits/stdc++.h> using namespace std; int main() { char str1[len],str2[len]; cout<<"Enter the first string:\n"; cin>>str1; cout<<"Enter the second string:\n"; cin>>str2; int len1 = strlen(str1); int len2 = strlen(str2); int length = len1 + len2 + 1; char result[length]; int index = 0; for(int i = 0; i < len1; i++) { result[index] = str1[i]; index++; } for(int i = 0; i < len2; i++) { result[index] = str2[i]; index++; } result[index] = '\0'; cout<<"\nThe Resultant string is: "<<result; } ';
cout<<"\nThe Resultant string is: "<<result;
}
OUTPUT: Enter the first string: helpme Enter the second string: studybro The Resultant string is: helpmestudybro Time Complexity: O(n), where n is the length of resultant string.
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