Here is a step-by-step solution to the problem:

1. Initialize a variable `sum` to 0. This will hold the sum of all numbers in the string.

2. Iterate over each character in the string. For each character, check if it is a digit. You can do this using the `isdigit()` function in Python.

3. If the character is a digit, add it to a temporary string `temp`. If the character is not a digit and `temp` is not empty, convert `temp` to an integer, add it to `sum`, and reset `temp` to an empty string.

4. After the loop, check if `temp` is not empty. If it's not, convert it to an integer and add it to `sum`. This is to handle the case where the string ends with a number.

5. Return `sum`.

Here is a Python code snippet that implements the above steps:

```python
def sum_of_numbers(A):
sum = 0
temp = ""
for char in A:
if char.isdigit():
temp += char
else:
if temp:
sum += int(temp)
temp = ""
if temp:
sum += int(temp)
return sum
```

You can call this function with a string as argument to get the sum of all numbers in the string. For example:

```python
print(sum_of_numbers("a12b34c")) # Output: 46
print(sum_of_numbers("123")) # Output: 123
```

Question

Here is a step-by-step solution to the problem:

1. Initialize a variable `sum` to 0. This will hold the sum of all numbers in the string.

2. Iterate over each character in the string. For each character, check if it is a digit. You can do this using the `isdigit()` function in Python.

3. If the character is a digit, add it to a temporary string `temp`. If the character is not a digit and `temp` is not empty, convert `temp` to an integer, add it to `sum`, and reset `temp` to an empty string.

4. After the loop, check if `temp` is not empty. If it's not, convert it to an integer and add it to `sum`. This is to handle the case where the string ends with a number.

5. Return `sum`.

Here is a Python code snippet that implements the above steps:

```python
def sum_of_numbers(A):
    sum = 0
    temp = ""
    for char in A:
        if char.isdigit():
            temp += char
        else:
            if temp:
                sum += int(temp)
                temp = ""
    if temp:
        sum += int(temp)
    return sum
```

You can call this function with a string as argument to get the sum of all numbers in the string. For example:

```python
print(sum_of_numbers("a12b34c"))  # Output: 46
print(sum_of_numbers("123"))  # Output: 123
```

Knowee AI · Accepted Answer