# 796-Rotate String
###### tags: `Easy`
## Question
https://leetcode.com/problems/rotate-string/
## Key
1. swap each char in all possibility
2. keep saving the first char and push back to the last char
## Reference
## Solution

class Solution {
public:
    bool rotateString(string A, string B) { 
        if(A == B) return true;
        
        int count = A.size() + 1;
        
        while(--count) {
            if(A == B) return true;
            
            const auto first = A[0];
            A.erase(A.begin());
            A.push_back(first); 
        }
        
        return false;
    }
};