array_stl.txt

#include<iostream>
using namespace std;
int main()
{
int a[6] = {2,5,-6,7,8,9,1};
{  int count=0;
for(int i=0;i<6;i++)
{
if(a[i]>=0)
{
count++;
}
}
//above function 
all_of(a, a+6, [](int x){return x>0};) ? cout<<"all elements of array is +ve"<<endl:cout<<"all elements
are not necessarily +ve"<<endl;

any_of(a, a+6,[](int x){return x<0;})? cout<<"we have atleast ine -ve"<<endl:cout<<"all elements are +ve"<<endl;

none_of(a, a+6,[](int x){return x==100};)? cout<<"we have none of elements exactly equal to 100"
<<endl: cout<<"it means have atleast one element =100"<<endl;

int arr1[6];
copy_of(a, 6, arr1);
for(int i=0;i<6;i++){ cout<<arr1[i]<<" ";}

int arr2[6];
iota{arr2, arr2+6, 2};
 for(int i=0;i<6;i++){ cout<<arr2[i]<<" ";}
}