#include<iostream>
#include<cstring>
using namespace std;
int main()
{
int arr[5]= { 1,2,3,4,5 };
memset( arr , 0 , sizeof(arr) );
//sizeof(arr) = sizeof(int)*5
for(int i=0;i<5;++i)
{
cout<<arr<<' ';
}
}
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