蓝桥网试题 java 基础练习 查找整数

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注意看清楚条件 别漏了

-1

-1

-1

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算法

 import java.util.*;
 public class Main {
     public static void main(String[] args) {
         Scanner sc = new Scanner(System.in);
         int n = sc.nextInt();
         int[] a = new int[n];
         for(int i=0;i<n;i++)
             a[i] = sc.nextInt();
         int s = sc.nextInt();
         boolean b = true;
         for(int i=0;i<n;i++)
             if(a[i]==s){
                 b = false;
                 System.out.println(i+1);
                 break;
             }
         if(b)
             System.out.println(-1);
     }
 }