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  • java 蓝桥杯算法提高 _1区间k大数查询

     1 import java.util.Scanner;
     2 public class _1区间K大数查询 {
     3    public static void main(String[] args) {
     4       Scanner scanner = new Scanner(System.in);
     5       int n= scanner.nextInt();
     6       int[] shuzu = new int[n];
     7       for (int i = 0; i < shuzu.length; i++) {
     8         shuzu[i] = scanner.nextInt();
     9     }
    10       int m = scanner.nextInt();
    11       int output[] = new int[m];  
    12       for (int i = 0; i < m; i++) {  
    13           int l = scanner.nextInt();  
    14           int r = scanner.nextInt();  
    15           int k = scanner.nextInt();  
    16           int[] K = new int[r - l + 1]; 
    17           //将shuzu[j]l和r这部分赋给k
    18           for (int j = l - 1; j < r; j++) {  
    19               K[j + 1 - l] = shuzu[j];  
    20           }  
    21             //将这部分排序,从大到小排序了
    22           for (int j = 0; j < K.length-1; j++) {  
    23               for (int j2 = 0; j2 < K.length-1-j; j2++) {  
    24                   if(K[j2]<K[j2+1]){  
    25                       int temp = K[j2];  
    26                       K[j2]= K[j2+1];  
    27                       K[j2+1] = temp;  
    28                   }  
    29               }  
    30           }  
    31           output[i] = K[k-1];  
    32       }  
    33       for (int i = 0; i < m; i++) {  
    34           System.out.println(output[i]);  
    35       }  
    36       
    37       
    38 }
    39 }
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  • 原文地址:https://www.cnblogs.com/zhangxue521/p/6600034.html
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