Untitled

class Solution {
public:
    int removeAlmostEqualCharacters(string word) {
        int ans=0;
        int n=word.size();
        for(int i=1;i<n;i++){
            if(word[i-1]=='*') continue;
            if(abs(word[i] -word[i-1])<=1){
                ans++;
                word[i]='*';
            }
        }
        return ans;
    }
};