Backspace String Compare Solutions in C++

// Source : https://leetcode.com/problems/backspace-string-compare/description/
// Author : Hao Chen
// Date   : 2018-06-29



class Solution {
private:    
    void removeBackspaces(string &s) {
        int i = 0;
        for(int i=0; i<s.size(); i++) {
            if (s[i] == '#') {
                int backSteps = i>0 ? 2 : 1;
                s.erase(i-backSteps + 1, backSteps);
                i -= backSteps;
            } 
        }
    }
    
public:
    bool backspaceCompare(string S, string T) {
        removeBackspaces(S);
        removeBackspaces(T);
        return S == T;
    }
};