Sure, here is a Python implementation of the function `lucky7s`:

```python
def lucky7s(s):
result = ''
for i in range(len(s)):
result += s[i]
if i

Question

Sure, here is a Python implementation of the function `lucky7s`:

```python
def lucky7s(s):
    result = ''
    for i in range(len(s)):
        result += s[i]
        if i < len(s) - 1 and s[i] == s[i+1]:
            result += '77'
    return result
```

This function works by iterating over each character in the string `s`. If the current character is the same as the next character, it adds '77' to the result string. Finally, it returns the result string.

Knowee AI · Accepted Answer

Sure, here is a Python implementation of the function `lucky7s`:

```python
def lucky7s(s):
    result = ''
    for i in range(len(s)):
        result += s[i]
        if i < len(s) - 1 and s[i] == s[i+1]:
            result += '77'
    return result
```

This function works by iterating over each character in the string `s`. If the current character is the same as the next character, it adds '77' to the result string. Finally, it returns the result string.

string lucky7s( string s );- Returns a string where repeated matching characters in the value s get separated by the string "77". You can assume that the input string s will not have any 7's in it.

Question

Solution

Similar Questions

Upgrade your grade with Knowee