Question

int main( ){
int a,b=10;
a = ++b + b--;
printf("a=%d b=%d",a,b);
}

Answer 1

Answer:

a=11+10

=21

Explanation:

++b means it increments first

so,11.

b-- means first it takes the original value and then decrements.

so,10.

Answer 2

a=22 b=10

Explanation:

a= preincrement b plus postdecrement b

preincrement b makes b as 10+1=11 but post decrement means in the next instance b will be decremented to 10 but in this line b-- is 11 only. So a becomes 11+11=22 and in the printf statement b becomes 10

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