Who know C++

Answer 1

Please describe the problem.

Answer 2

Jo'shqinbek Bekniyozov Ur while loop should be like this:-
while(a<=b)
{sum+=(1/a);
a++;
}

Answer 3

You can learn from here https://www.cplusplus.com , it really helped me understand! you should practice when you learn something!

Answer 4

Why there is a++ included twice in the loop?

Why are you using sum = sum + 1 (incrementing sum by 1) while you were supposed to increment sum by a fraction?

Answer 5

You were supposed to increment sum by a fraction, not by sum itself.

Answer 6

but its still better, currently all the problems are located on this statement:
sum += sum;

Answer 7

With fraction I mean't 1/1, 1/2, ... 1/n in the problem description.

I can give hint that variable a represents n in the list.

(a = 1, 2, ... b)

Answer 8

If this is a role call, I guess I'll say "Here"

Answer 9

Using while loop to calculate S=1/1+1/2+.....+1/n

Answer 10

#include<iostream>
using namespace std;
int main()
{
int a=1, b;
double sum = 0;
cout << "enter the number = ";
cin >> b;
while ( a <= b, a++)
{
sum = sum+ 1;
a++;
}
cout << "sum is " << sum << endl;
system("pause");
return 0;
}

It is not calculate sum
Only input valur

Answer 11

#include<iostream>
using namespace std;
int main()
{
int a=1, b;
double sum = 0;
cout << "enter the number = ";
cin >> b;
while ( a <= b )
{
sum += sum;
a++;
}
cout << "sum is " << sum << endl;
system("pause");
return 0;
}

Answer 12

Also the same problem

Answer 13

Sum is 0😕😕

Answer 14

Thank you

Answer 15

Please help me