题解 | 小红喜欢1
小红喜欢1
https://www.nowcoder.com/practice/cbd0c91f821847a4bb1c5115405f6eda
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int[] arr = new int[5];
int res = -1;
for(int i = 0;i < arr.length;i++){
arr[i] = in.nextInt();
if(arr[i] == 1){
res = i+1;
}
}
System.out.println(res);
}
}