scanf("%d %d",&a,&b);
//set the content from A[a] to A[b] as '0' without looping

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int a[10]; // Array of 10 elements with val of 0;
    memset(a,0,sizeof(a));
    // Sets all array elements to 0

    memset(a+2,-1,sizeof(int)*5);
    // Sets value of array elements from 2 to 6 index equals to -1

    for(int i=0;i<10;i++)
       cout<<a[i]<<" ";
       cout<<endl;

       return 0;
}