[백준] 16968번 : 차량 번호판 1 - C++

https://www.acmicpc.net/problem/16968

#include <iostream>
#include <algorithm>
using namespace std;

int main() {
    string arr;
    cin >> arr;
    int count=1;
    for(int i=0;i<arr.length();i++){
        if(i==0){
            if(arr[i]=='c') count*=26;
            else count*=10;
        }
        else{
            if(arr[i]==arr[i-1]){
                if(arr[i]=='c') count*=25;
                else count*=9;
            }
            else{
                if(arr[i]=='c') count*=26;
                else count*=10;
            }
        }
    }
    cout<<count;
}