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for(int k=0, sum=0; k<5; k++)
{
sum +=k;
cout<<sum<<" "<<k<<endl;
}
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#include<stdio.h>
main()
{
int a,x;
for (a=640; x>5;a/=2)
{
x = a/2;
printf("\n%d divided by 2 is equal %d", a,x);
}
return 0;
}