How many times will the printf statement be executed?main( ){unsigned int i=3; while( i >=0)printf( "%d", i--);}A0

1. Break Down the Problem

The question asks how many times the printf statement will be executed in the provided C code. We'll analyze the while loop and the behavior of the variable i.

2. Relevant Concepts

In C, the data type unsigned int can only hold non-negative values. The loop condition i >= 0 means the loop will continue as long as i is greater than or equal to zero. The post-decrement operator i-- will decrease the value of i after the current value is printed.

3. Analysis and Detail

• Initial Value: i starts at 3.
• Loop Execution:
  • 1st iteration: i = 3, print 3, then i becomes 2.
  • 2nd iteration: i = 2, print 2, then i becomes 1.
  • 3rd iteration: i = 1, print 1, then i becomes 0.
  • 4th iteration: i = 0, print 0, then i becomes -1.
• Loop Condition: The loop continues as long as i is >= 0, which means when i reaches -1, the loop stops executing since an unsigned int cannot hold negative values but the comparison will evaluate as false.

4. Verify and Summarize

The printf statement executes four times while i takes the values 3, 2, 1, 0 and stops before it can print -1. Therefore, the printf statement is executed a total of four times.

Final Answer

The printf statement will be executed 4 times.