-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathJavaArrayList.java
More file actions
74 lines (41 loc) · 1.75 KB
/
JavaArrayList.java
File metadata and controls
74 lines (41 loc) · 1.75 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author Dell
*/
import java.util.*;
import java.io.*;
public class JavaArrayList {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
ArrayList<ArrayList<Integer>> arr = new ArrayList<ArrayList<Integer>>();
int n = sc.nextInt();
while(n != 0){
int d = sc.nextInt(); // no of digits in a list
ArrayList<Integer> temp = new ArrayList<>();
for(int i = 0 ; i < d ; i++){
temp.add(sc.nextInt());
}
arr.add(temp);
n = n - 1;
}
int q = sc.nextInt(); // no of queries
while(q != 0){
int x = sc.nextInt(); //list Number
int y = sc.nextInt(); //Index Number
if(arr.get(x-1).isEmpty() != true && y - 1 < arr.get(x - 1).size()){
if(arr.get(x - 1).get(y - 1) != 0){
System.out.println(arr.get(x - 1).get(y - 1));
}
}
else{
System.out.println("ERROR");
}
q = q - 1;
}
}
}