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  1. import java.util.*;
  2.  
  3. class flattenArray
  4. {
  5.     public static void main(String args[]) {
  6.         int inputLists[][] = {{1,2,24},{12,1241,122},{3,2},{7}};
  7.         flattenList(inputLists);
  8.     }
  9.  
  10.     public static int maxLength(int array[][]) {
  11.         int maxLength = 0;
  12.  
  13.         for (int i = 0; i < array.length; i++) {
  14.             maxLength = array[i].length > maxLength ? array[i].length : maxLength;
  15.         }
  16.  
  17.         return maxLength;
  18.     }
  19.  
  20.     public static void flattenList(int input[][]) {
  21.         int maxLength = maxLength(input);
  22.         List<Integer> result = new ArrayList<>();
  23.  
  24.         for (int i = 0; i < maxLength; i++) {
  25.             for (int j = 0; j < input.length; j++) {
  26.                 if (i < input[j].length) {
  27.                     result.add(input[j][i]);
  28.                 }
  29.             }
  30.         }
  31.  
  32.         for(int i=0;i<result.size();i++){
  33.             System.out.print(result.get(i)+" ");
  34.         }
  35.  
  36.         System.out.println();
  37.     }
  38. }
Success #stdin #stdout 0.04s 320576KB
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stdin
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Standard input is empty
stdout
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1 12 3 7 2 1241 2 24 122
https://ideone.com/EV8Wjg
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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