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  1. public class Solution {
  2.  
  3.     public static void mergeSort(int[] arr, int l, int r){
  4.  
  5.         if (l >= r)
  6.             return;
  7.  
  8.         int mid = (l + r) / 2;
  9.  
  10.         mergeSort(arr, l, mid);
  11.  
  12.         mergeSort(arr, mid+1, r);
  13.  
  14.         merge(arr, l, r);
  15.     }
  16.  
  17.  
  18.     public static void merge(int[] arr, int l, int r) {
  19.  
  20.         int mid = (l + r) / 2;
  21.  
  22.         int temp[] = new int[r-l+1];
  23.  
  24.         int i = l;
  25.         int j = mid+1;
  26.  
  27.         int k = 0;
  28.  
  29.         while (i <= mid && j <= r) {
  30.  
  31.             if (arr[i] < arr[j]) {
  32.  
  33.                 temp[k] = arr[i];
  34.                 k++;
  35.                 i++;
  36.             }
  37.  
  38.             else {
  39.  
  40.                 temp[k] = arr[j];
  41.                 j++;
  42.                 k++;
  43.             }
  44.         }
  45.  
  46.         while (i <= mid) {
  47.  
  48.             temp[k] = arr[i];
  49.             k++;
  50.             i++;
  51.         }
  52.  
  53.         while (j <= r) {
  54.  
  55.             temp[k] = arr[j];
  56.             j++;
  57.             k++;
  58.         }
  59.  
  60.  
  61.         for (int t = 0; t < temp.length; t++) {
  62.  
  63.             arr[t + l] = temp[t];
  64.         }
  65.     }
  66. }
  67.  
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:1: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/jXnePs
language:
Java (HotSpot 12)
created:
277 days ago
visibility:
public

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