Submission #401356

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Source Code Expand

import java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner sc1 = new Scanner(System.in);
		int n=sc1.nextInt();
		Scanner sc2 = new Scanner(System.in);
		String s = sc2.next();
		int result=-1;
		
		String[] ans = new String[n+1];
		String ac = "b";
		for(int i=0;i<n;i++){
			switch (i%3){
				case 0:
					ac="a"+ac+"c";
					break;
				
				case 1:
					ac="c"+ac+"a";
					break;
					
				case 2:
					ac="b"+ac+"b";
					break;
			}
			
			ans[i]=ac;
		}
		
		for(int i=0;i<n;i++){
			if(ans[i].equals(s)){
				result=i+1;
				break;
			}else{
				result=-1;
			}
		}
		System.out.println(result);
	}
}

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