Please tell me guys how to work pre-increment operator and tell me how to come here 15,66 result.

Question

#include <studio.h>

int main() {
int a,b;
a=10;
b=(++a)+(++a)+(++a)+(++a)+(++a);
printf ("A nd B is=%d %d",a,b);
return 0;
}

Answer 1

how "b" become 66

Answer 2

actually it should be 15,65 in my opinion.
you have a=10 in start, but every ++a operation increments it’s value to one integer more, so ++a equal 11, next +a equal 12 and finally, because you have did this operation five times, your a equals 15.
incouding this knowing, you will be count b as 11+12+13+14+15 (because every ++a opeartion is returning a as one integer higher value). so now b equals 65 (because in the start you didn’t set this value, so it was zero).
notation „%d” takes the next argument and prints it as a int. so a and b will be print as a int.
now you get 15,65

Answer 3

yes you are right but when we run this code then come the output is 15,66.

Answer 4

yes 15 ,66 is right answer because when use ++a oprator for addition it get 1 plus in answer

Answer 5

but why

Answer 6

please explain me

Answer 7

салом