Given an int variable that has already been declared and initialized to a positive value, use a while loop to print a single line consisting of ?? ?asterisks. Use no variables other than ??.
1 ?Enter your code
The Correct Answer and Explanation is :
To print a single line consisting of n asterisks using a while loop in C, you can use the following code:
#include <stdio.h>
int main() {
int n = 5; // Example positive value for n
while (n > 0) {
printf("*");
n--;
}
printf("\n"); // Move to the next line after printing all asterisks
return 0;
}
Explanation:
- Initialization: he variable
nis initialized to a positive integer value, representing the number of asterisks to be printed. In this example,nis set to 5. - While Loop Condition: he
whileloop continues to execute as long asnis greater than 0. This ensures that the loop runs exactlyntimes. - Printing Asterisks: ithin the loop,
printf("*");outputs a single asterisk without moving to a new line. - Decrementing
n: fter printing an asterisk,nis decremented by 1 usingn--;. This reduces the value ofnby one in each iteration, bringing it closer to the loop termination condition. - Loop Termination: nce
nreaches 0, thewhileloop conditionn > 0becomes false, and the loop exits. - Newline Character: fter exiting the loop,
printf("\n");is used to move the cursor to the next line. This is optional but ensures that any subsequent output starts on a new line.
Key Points:
- Single Variable Usage: he task specifies using no variables other than
n. In this solution,nserves both as the loop counter and the determinant of the number of asterisks to print. - Loop Mechanics: he
whileloop is appropriate here because the number of iterations is determined by the initial value ofn. The loop decrementsnwith each iteration until it reaches zero, ensuring that exactlynasterisks are printed. - Output Control: y not including a newline character within the loop’s
printfstatement, all asterisks are printed on the same line. The newline character is added after the loop to finalize the output line.
his approach efficiently prints a specified number of asterisks in a single line using awhileloop and adheres to the constraint of using only the variablen.