CCF CSP Brush Question Record 23-201803-1 Jump one jump (Java)

Question number:	201803-1
Question name:	Jump around
time limit:	1.0s
Memory limit:	256.0MB
Problem Description:	Problem Description 　　Recently, the little game of Jump is popular all over the country and is loved by many players. 　　The simplified jump-jump rules are as follows: every time the player jumps from the current square to the next square, the game ends if it does not jump to the next square. 　　If you jump to the square but do not jump to the center of the square, you get 1 point; when you jump to the center of the square, if the previous score was 1 point or this is the first jump in the game, the score this time is 2 points. Otherwise, the score this time is two points more than the previous score (that is, the total score will be +2, +4, +6, +8...). 　　Now give a person the whole process of jumping, please find his score in this game (according to the rules described in the title). Input format 　　The input contains multiple numbers, separated by spaces, each number is one of 1, 2, 0, 1 means that the jump jumped to the square but did not jump to the center, 2 means that the jump jumped to the square and jumped to the center In the center of the square, 0 means that the jump did not jump to the square (the game is over). Output format 　　Output an integer, the score of this game (under the rules of this question). Sample input 1 1 2 2 2 1 1 2 2 0 Sample output 22 Data size and convention 　　For all evaluation use cases, no more than 30 numbers are entered, and 0 appears exactly once and is the last number.

 

import java.util.Scanner;
public class 跳一跳 {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int[] a=new int[30];
		for(int i=0;i<30;i++){
			a[i]=sc.nextInt();
			if(a[i]==0){
				break;
			}
		}
		int c=0;
		int score=0;
		for(int i=0;i<30;i++){
			if(a[i]==1){
				score+=1;
				c=0;
			}else if(a[i]==2){
				
				c++;
				score+=c*2;
			}
		}
		System.out.println(score);
	}

}