Replace space with some character.txt

You have been given a string 'STR' of words. You need to replace all the spaces between words with “@40”.
Input Format:
The first line contains a single integer ‘T’ representing the number of test cases. 

The first line of each test case will contain a single string 'STR' consisting of one or more words. 
Output Format:
For each test case, return the modified string after replacing all the spaces between words with “@40”.

Print the output of each test case in a separate line.
Note:
You don’t need to print anything, It has already been taken care of. Just implement the given function.
Constraints:
1 <= T <= 50
0 <= |STR| <= 100

Where ‘|STR|’ is the length of a particular string including spaces.

Time limit: 1 sec
Sample Input 1:
2
Coding Ninjas Is A Coding Platform
Hello World
Sample Output 1:
Coding@40Ninjas@40Is@40A@40Coding@40Platform
Hello@40World
Explanation Of Sample Output 1:
In test case 1, After replacing the spaces with “@40” string is: 

Coding@40Ninjas@40Is@40A@40Coding@40Platform

In test case 2, After replacing the spaces with “@40” string is: 

Hello@40World
Sample Input 2:
3
Hello
I love coding
Coding Ninjas India
Sample Output 2:
Hello
I@40love@40coding
Coding@40Ninjas@40India    
Explanation For Sample Output 2:
In test case 1, After replacing the spaces with “@40” string is: 

Hello

In test case 2, After replacing the spaces with “@40” string is: 

I@40love@40coding

In test case 3, After replacing the spaces with “@40” string is: 

Coding@40Ninjas@40India








Solution:

string replaceSpaces(string &str)
{
	string temp = "";
    
    for(int i = 0 ; i < str.length() ; i++)
    {
        if(str[i] == ' ')
        {
            temp.push_back('@');
            temp.push_back('4');
            temp.push_back('0');
		}
        
        else
       	{
            temp.push_back(str[i]);
		}
	}
    return temp;
}