C++ Program to Remove Spaces from a String

This is a C++ Program to Remove the Spaces in a String.

Problem Description

The program takes a string and removes the spaces in it.

Problem Solution

1. The program takes a string.
2. Using a for loop, any spaces found in the string are removed.
3. The result is printed.
4. Exit.

C++ Program/Source code

Here is the source code of C++ Program to Remove the Spaces in a String. The program output is shown below.

```
#include<iostream>
```
```
#include<string.h>
```
```
using namespace std;
```
```
int main ()
```
```
{   char str[80];
```
```
    int i=0, len, j;
```
```
    cout << "Enter a string : ";
```
```
    gets(str);
```
```
    len = strlen(str);
```
```
    for( i = 0; i < len; i++)
```
```
    {
```
```
        if (str[i] == ' ')
```
```
        {
```
```
            for (j = i; j < len; j++)
```
```
                str[j] = str[j+1];
```
```
            len--;
```
```
        }
```
```
    }
```

    cout << "Resultant string : " << str;

```
    return 0;
```
```
}
```

Program Explanation

1. The program takes a string and stores it in ‘str’.
2. Using a for loop, if a space is encountered it is removed by shifting elements to the left.
3. The resultant string is printed.

Runtime Test Cases

Case 1 :
Enter a string : A B C D E
Resultant string : ABCDE
 
Case 2 :
Enter a string : B a l l 2 5
Resultant string : Ball25
 
Case 3 :
Enter a string : Welcome to Programming World!
Resultant string : WelcometoProgrammingWorld!

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