Rewrite the following code using a while loop. int sum = 0; int count = 0; for(int i = 1; i < 1048; i i*2) { sum = sum + i; count++; II
Rewrite the following code using a while loop. int sum = 0; int count = 0; for(int i = 1; i < 1048; i i*2) { sum = sum + i; count++; II
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter15: Recursion
Section: Chapter Questions
Problem 20PE
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Attached is a question, using java.
![**Rewriting a for Loop as a while Loop**
**Original Code Using a for Loop:**
```cpp
int sum = 0;
int count = 0;
for(int i = 1; i < 1048; i = i*2) {
sum = sum + i;
count++;
}
```
In this code snippet, we use a `for` loop to sum the values of `i`, where `i` starts from 1 and is multiplied by 2 every iteration until it reaches 1048. Additionally, the `count` variable is incremented with each iteration to keep track of how many times the loop has executed.
**Equivalent Code Using a while Loop:**
```cpp
int sum = 0;
int count = 0;
int i = 1; // Initialize iterator variable outside of the loop
while(i < 1048) {
sum = sum + i;
count++;
i = i * 2; // Update the iterator variable inside the loop
}
```
### Explanation:
1. **Initial Setup**: Similar to the `for` loop, we initialize the variables `sum`, `count`, and `i` before entering the `while` loop.
2. **Loop Condition**: The `while` loop continues to execute as long as `i` is less than 1048.
3. **Inside the Loop**: Within the `while` loop, we:
- Add the current value of `i` to `sum`.
- Increment the `count` variable.
- Multiply `i` by 2 to get the next value in the sequence.
By making these adjustments, we achieve the same functionality as the original `for` loop using a `while` loop.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0309cbb4-3056-403b-8eb0-8f64136b6051%2F2ff24ddf-2148-4de1-893f-cfb7f2c7b2a5%2F6iukwhst_processed.png&w=3840&q=75)
Transcribed Image Text:**Rewriting a for Loop as a while Loop**
**Original Code Using a for Loop:**
```cpp
int sum = 0;
int count = 0;
for(int i = 1; i < 1048; i = i*2) {
sum = sum + i;
count++;
}
```
In this code snippet, we use a `for` loop to sum the values of `i`, where `i` starts from 1 and is multiplied by 2 every iteration until it reaches 1048. Additionally, the `count` variable is incremented with each iteration to keep track of how many times the loop has executed.
**Equivalent Code Using a while Loop:**
```cpp
int sum = 0;
int count = 0;
int i = 1; // Initialize iterator variable outside of the loop
while(i < 1048) {
sum = sum + i;
count++;
i = i * 2; // Update the iterator variable inside the loop
}
```
### Explanation:
1. **Initial Setup**: Similar to the `for` loop, we initialize the variables `sum`, `count`, and `i` before entering the `while` loop.
2. **Loop Condition**: The `while` loop continues to execute as long as `i` is less than 1048.
3. **Inside the Loop**: Within the `while` loop, we:
- Add the current value of `i` to `sum`.
- Increment the `count` variable.
- Multiply `i` by 2 to get the next value in the sequence.
By making these adjustments, we achieve the same functionality as the original `for` loop using a `while` loop.
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