c Language

Question

#include <stdio.h>
int main(void)
{
    int a=3,b,c,d=10,e=20,f;

    c= ++a + a++ + a++ + ++a;

    b= ++d + ++d + ++d + ++d;

    f= ++e + --e + e-- + e++;

    printf("%d %d\n",a,c);

    printf("%d %d\n",d,b);

    printf("%d %d\n",e,f);

 return 0;
}

please give the detailed explanation how it works? and what is the output?

Comments

UNDEFINED BEHAVIOR. These type of question will not be asked in GATE, don't waste too much time on these questions.

https://gateoverflow.in/62411/undefined-behaviour-in-c