蓝桥网试题 java 算法训练 区间k大数查询

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数组也有sort方法

尽量把输入和操作分开写

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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 m = sc.nextInt();
        int[] l = new int[m];
        int[] r = new int[m];
        int[] K = new int[m];
        for(int i=0;i<m;i++) {
            l[i] = sc.nextInt();
            r[i] = sc.nextInt();
            K[i] = sc.nextInt();
        }
        int[] res = new int[m];
        for(int i=0;i<m;i++) {
            int[] b = new int[r[i]-l[i]+1];
            int w = l[i] - 1;
            for(int j=0,k=w;j<b.length;j++,k++)
                b[j] = a[k];
            Arrays.sort(b);
            res[i] = b[b.length-K[i]];
        }
        for(int i:res)
            System.out.println(i);
    }
}