The output of the code will be ____. int i=5; printf(“%d %d %d”, i, i++, ++i); ans.
Question
The output of the code will be ____.
int i = 5;
printf("%d %d %d", i, i++, ++i);
ans.
Solution
To determine the output of the given code snippet, we should analyze the printf
function's arguments and the behavior of the post-increment (i++
) and pre-increment (++i
) operators in C.
Step 1: Understand Variable Initialization
- We initialize
int i = 5;
.
Step 2: Analyze the printf Function
- The statement to evaluate is:
printf("%d %d %d", i, i++, ++i);
- The
printf
function is using three arguments:- The value of
i
- The value of
i
after the post-increment - The value of
i
after the pre-increment
- The value of
Step 3: Determine the Order of Evaluation
- In C, the order of evaluation for function arguments is unspecified. So, we need to understand what happens step by step:
- The current value of
i
is5
when evaluated first. - Post-increment (
i++
) will use the current value ofi
(which is still5
in this step) and then increment it. Therefore, this part evaluates to5
, buti
becomes6
. - Pre-increment (
++i
) will then incrementi
(now6
) to7
, but it uses the incremented value. So, this part evaluates to7
.
- The current value of
Step 4: Collect Results
So we have:
- First argument:
i
=5
- Second argument:
i++
=5
(but nowi
becomes6
) - Third argument:
++i
=7
(after incrementing6
)
Step 5: Prepare the Output
Putting it all together, the final output will be:
5 5 7
Final Answer
The output of the code will be 5 5 7
.
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