C++ Program to Replace All Spaces in a String with %

This is a C++ Program to Replace all Spaces in a String with %.

Problem Description

The program takes a string and replaces all spaces in it with %.

Problem Solution

1. The program takes a string.
2. The string is checked for spaces and replaced with %.
3. The result is printed.
4. Exit.

C++ Program/Source code

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

```
#include<iostream>
```
```
#include<string.h>
```
```
using namespace std;
```
```
int main ()
```
```
{   
```
```
    int i;
```
```
    char str[50];
```
```
    cout << "Enter string : ";
```
```
    gets(str);
```
```
    for (i = 0; str[i] !='\0'; i++)
```
```
    {
```
```
	    if (str[i] == ' ')
```
```
                str[i]='%';
```
```
    }			
```

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

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

Program Explanation

1. The program takes a string and stores it in the array ‘str’.
2. Using a for loop, the string is checked for spaces and replaced with ‘%’.
3. The result is then printed.

Runtime Test Cases

Case 1 :
Enter string : Well begun is half done.
Resultant string : Well%begun%is%half%done.
 
Case 2 :
Enter string : Greece
Resultant string : Greece
 
Case 3 :
Enter string :12 23 34 45
Resultant string : 12%23%34%45

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