C Programming Questions

 1.What will be output when you will execute following c code?

#include<stdio.h>
const enum Alpha{
      X,
      Y=5,
      Z
}p=10;
int main(){
    enum Alpha a,b;
    a= X;
    b= Z;
    printf("%d",a+b-p);
    return 0;
}

2. What will be output when you will execute following c code?

#include<stdio.h>
int main(){
    signed x,a;
    unsigned y,b;
    a=(signed)10u;
    b=(unsigned)-10;
    y = (signed)10u + (unsigned)-10;
    x = y;
    printf("%d  %u\t",a,b);
    if(x==y)
         printf("%d %d",x,y);
    else if(x!=y)
         printf("%u  %u",x,y);
    return 0;
}

3. What will be output when you will execute following c code?
#include<stdio.h>
int main(){
    char a=250;
    int expr;
    expr= a+ !a + ~a + ++a;
    printf("%d",expr);
    return 0;
}

4. What will be output when you will execute following c code?

#include<stdio.h>
int main(){
    int a=-5;
    unsigned int b=-5u;
    if(a==b)
         printf("Avatar");
    else
         printf("Alien");
    return 0;
}

5. What will be output when you will execute following c code?

#include<stdio.h>
extern enum cricket x;
int main(){
    printf("%d",x);
    return 0;
}
const enum cricket{
    Taylor,
    Kallis=17,
    Chanderpaul
}x=Taylor|Kallis&Chanderpaul;

6. What will be output when you will execute following c code?
#include<stdio.h>
int main(){
    int i=5,j;
    j=++i+++i+++i;
    printf("%d %d",i,j);
    return 0;
}

7. What will be output of the following program?

#include<stdio.h>
int main(){
    int i=1;
    i=2+2*i++;
    printf("%d",i);
    return 0;
}

8. What will be output of the following program?

#include<stdio.h>
int main(){
    int a=2,b=7,c=10;
    c=a==b;
    printf("%d",c);
    return 0;
}

9. What will be output of the following program?

#include<stdio.h>
void main(){
    int x;
    x=10,20,30;
    printf("%d",x);
    return 0;
}

10. What will be output of the following program?

#include<stdio.h>
int main(){
    int a=0,b=10;
    if(a=0){
         printf("true");
    }
    else{
         printf("false");
    }
    return 0;
}

11. What will be output of the following program?

#include<stdio.h>
int main(){
    int a;
    a=015 + 0x71 +5;
    printf("%d",a);
    return 0;
}

12. What will be output of the following program?

#include<stdio.h>
int main(){
    printf("%d %d %d",sizeof(3.14),sizeof(3.14f),sizeof(3.14L));
    return 0;
}

13.What will be output of the following program?

#include<stdio.h>
int main(){
    float a;
    (int)a= 45;
    printf("%d,a);
    return 0;
}

#THIS TIME I AM NOT PROVIDING OUTPUT BECAUSE OUTPUT IS  DIFFERS ACCORDING TO THE COMPILER .