C++ Taskbook Level 1.7

Задание 1

Find the sum of the squares of all odd integers in the range from 1 to 100.

Задание 2

Write code that will print the first N powers of two.

Задание 3

Three lines are given:

cppstd::string str1 = "123";
std::string str2 = "456";
std::string str3 = "789";

Add the values ​​of these rows as integers.

Задание 4

Given a string:

cppstd::string str = "123456789";

Find the sum of the digits in this line.

Задание 5

Given a fractional number containing the number of gigabytes:

cppfloat gb = 35.24;

Convert this value to megabytes, kilobytes, and bytes.