Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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**Code Explanation and Output:**

### Code
```python
stop = int(input())
result = 0
for a in range(2):
    print(a, end=': ')
    for b in range(4):
        result += a + b
        if result > stop:
            print('-', end=' ')
            continue
        print(result, end=' ')
    print()
```

### Input
The program takes an integer input `6`.

### Output Explanation
The program consists of nested loops. It iterates over a range of numbers, modifying and checking the `result` variable, and printing specific values based on the condition:

1. **Outer loop (`for a in range(2)`):** This loops over `a` with values `0` and `1`.

2. **Inner loop (`for b in range(4)`):** Within each iteration of the outer loop, this loops over `b` with values `0`, `1`, `2`, and `3`.

3. **Result Calculation (`result += a + b`):** 
   - During each iteration, `result` is increased by the sum of `a` and `b`.

4. **Condition Check (`if result > stop:`):** 
   - If `result` exceeds the input value (`6` in this case), it prints `'-'` and skips to the next iteration.

5. **Printing (`print(result, end=' ')`):** 
   - If `result` is not greater than `stop`, it prints the current value of `result`.

### Program Output
With `input = 6`, the output will print the following:

```
0: 0 1 3 6 - 
1: 8 - - - 
```

**Explanation of the Output:**

- **For `a = 0`:**
  - Initial result values are `0, 1, 3, 6`. When `b = 3`, `result` becomes `10`, which is greater than `6`, so `'-'` is printed.

- **For `a = 1`:**
  - Initial result value is `8`, greater than `6`, so `'-'` is printed.
  - Subsequent `result` values exceed `6`, resulting in additional `'-'` characters being printed.
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Transcribed Image Text:**Code Explanation and Output:** ### Code ```python stop = int(input()) result = 0 for a in range(2): print(a, end=': ') for b in range(4): result += a + b if result > stop: print('-', end=' ') continue print(result, end=' ') print() ``` ### Input The program takes an integer input `6`. ### Output Explanation The program consists of nested loops. It iterates over a range of numbers, modifying and checking the `result` variable, and printing specific values based on the condition: 1. **Outer loop (`for a in range(2)`):** This loops over `a` with values `0` and `1`. 2. **Inner loop (`for b in range(4)`):** Within each iteration of the outer loop, this loops over `b` with values `0`, `1`, `2`, and `3`. 3. **Result Calculation (`result += a + b`):** - During each iteration, `result` is increased by the sum of `a` and `b`. 4. **Condition Check (`if result > stop:`):** - If `result` exceeds the input value (`6` in this case), it prints `'-'` and skips to the next iteration. 5. **Printing (`print(result, end=' ')`):** - If `result` is not greater than `stop`, it prints the current value of `result`. ### Program Output With `input = 6`, the output will print the following: ``` 0: 0 1 3 6 - 1: 8 - - - ``` **Explanation of the Output:** - **For `a = 0`:** - Initial result values are `0, 1, 3, 6`. When `b = 3`, `result` becomes `10`, which is greater than `6`, so `'-'` is printed. - **For `a = 1`:** - Initial result value is `8`, greater than `6`, so `'-'` is printed. - Subsequent `result` values exceed `6`, resulting in additional `'-'` characters being printed.
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