Question

. What is the output when the following code segment is executed?
main )
{
int a = 20;
int b = 30;
printf("%d", a++, ++b);
}
(a) 20,30
(b) 21,31
(c) 0,31
(d) 19,29​

Answer 1

note:the options are wrong..

Answer:

o/p

%d 20 31

Explanation:

a++ is given,Therefore print the value of variable.

++b is given, Therefore print the value of variable +1 .

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Answer 2

Option A)  20,30

The output when the following code segment is executed.

C Code

main

{

int a = 20;

int b = 30;

printf("%d", a++, ++b);

}

Output

20,30

• The increment operator has two different uses in C: preincrement and postincrement. Pre-Increment places the variable before the operator plus sign (++). A variable's value is increased before being transferred to another variable. In Post-Increment, the variable is followed by the plus sign (++). Operator before increment: A variable's value is increased before being utilised in an expression using a pre-increment operator.
• Value is incremented before being used in the expression in the Pre-Increment. After an expression using post-increment has been fully executed, the value of an operand (variable) may be increased using the post-increment operator (++). It indicates that the value of the operand (variable) is used first when we use the post-increment (++) operator, and then the operand is increased.

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