Problem

2/10

Adding an element

Theory Click to read/hide

There are two options for adding an element to an ArrayList:
add(value);  - adding a value to the end of the ArrayList
add(index, value); - adding a value to the right place by index.

For example:

arr.add(10);
arr.add(5,10);
 

Problem

Create an integer ArrayList and fill it with only positive elements.

Input: The first line contains the number of elements in the array. The second line contains the elements of the array.

Output: print only positive elements from the sequence.
 
Examples
# Input Output
1 4
2 -4 0 100 		2 100

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

Teacher commentary

Insert the missing code snippets
Java
Write the program below 
#include <iostream>
#include<vector>
using namespace std;
int main() {
        int n;
	cin >> n;
    
	for (int i = 0; i < a.size(); i++)
		cout << a[i]<<" ";
  return 0;
}

     

Program check result

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