GATE Exam > GATE Questions > Consider the below given C program :#include#...
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Consider the below given C program :
#include
#include
enum {false, true};
int main()
{
int i = 1;
do
{
printf("%d\n", i);
i++;
if (i < 15)
continue;
} while (false);
getchar();
return 0;
}
How many times the print statement is executed _________.
- a)2
- b)1
- c)4
- d)3
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Consider the below given C program :#include#includeenum {false, true}...
The do while loop checks condition after each iteration. So after the continue statement, control transfers to the statement while(false). Since the condition is false ‘i’ is printed only once.
Most Upvoted Answer
Consider the below given C program :#include#includeenum {false, true}...
Understanding the C Program
The provided C program has a specific structure that affects the execution of the print statement. Let's break it down.
Key Components
- Includes and Enum: The program includes standard libraries and defines a simple enum for boolean values.
- Main Function: The execution starts in the `main()` function, where `i` is initialized to 1.
Do-While Loop Mechanics
- Do-While Loop: The `do` block will execute at least once due to its structure, regardless of the condition.
- Print Statement: The program prints the value of `i`, which starts at 1.
Flow of Execution
1. First Iteration:
- `i` is 1.
- The print statement executes, displaying `1`.
- `i` is incremented to 2.
- Since `i` (2) is less than 15, `continue` is executed, which ignores the rest of the loop and jumps back to the `while` condition.
2. While Condition: The condition is `false`, thus the loop does not repeat.
Total Executions of Print Statement
- The print statement executes once (when `i` is 1). After that, the loop ends because the while condition is `false`.
Final Answer
Thus, the correct answer to how many times the print statement is executed is 1 (option 'B').
The provided C program has a specific structure that affects the execution of the print statement. Let's break it down.
Key Components
- Includes and Enum: The program includes standard libraries and defines a simple enum for boolean values.
- Main Function: The execution starts in the `main()` function, where `i` is initialized to 1.
Do-While Loop Mechanics
- Do-While Loop: The `do` block will execute at least once due to its structure, regardless of the condition.
- Print Statement: The program prints the value of `i`, which starts at 1.
Flow of Execution
1. First Iteration:
- `i` is 1.
- The print statement executes, displaying `1`.
- `i` is incremented to 2.
- Since `i` (2) is less than 15, `continue` is executed, which ignores the rest of the loop and jumps back to the `while` condition.
2. While Condition: The condition is `false`, thus the loop does not repeat.
Total Executions of Print Statement
- The print statement executes once (when `i` is 1). After that, the loop ends because the while condition is `false`.
Final Answer
Thus, the correct answer to how many times the print statement is executed is 1 (option 'B').
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