Easy Solution
IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```cpp []
class Solution {
public:
    bool hasSameDigits(string s) {
        
        while(true){
            string str = "";
            for(int i=1;i<s.length();i++){
                int num1 = s[i] - '0';
                int num2 = s[i-1] - '0';
                int sum = num1 + num2;
                str += (sum%10 + '0');
            }
            if(str.length() == 2){
                if(str[0] == str[1]){
                    return true;
                }
                else{
                    return false;
                }
            }

            s = str;
        }

        return false;
    }
};
```
['C++']