C Programming

1.	What will the SWAP macro in the following program be expanded to on preprocessing? will the code compile? #include<stdio.h> #define SWAP(a, b, c)(c t; t=a, a=b, b=t) int main() { int x=10, y=20; SWAP(x, y, int); printf("%d %d\n", x, y); return 0; }
	A. It compiles B. Compiles with an warning C. Not compile D. Compiles and print nothing

2.	In which stage the following code #include<stdio.h> gets replaced by the contents of the file stdio.h
	A. During editing B. During linking C. During execution D. During preprocessing

3.	What will be the output of the program? #include<stdio.h> #define MAN(x, y) ((x)>(y)) ? (x):(y); int main() { int i=10, j=5, k=0; k = MAN(++i, j++); printf("%d, %d, %d\n", i, j, k); return 0; }
	A. 12, 6, 12 B. 11, 5, 11 C. 11, 5, Garbage D. 12, 6, Garbage

4.	What will be the output of the program? #include<stdio.h> #define SQUARE(x) x*x int main() { float s=10, u=30, t=2, a; a = 2*(s-u*t)/SQUARE(t); printf("Result = %f", a); return 0; }
	A. Result = -100.000000 B. Result = -25.000000 C. Result = 0.000000 D. Result = 100.000000

5.	What will be the output of the program? #include<stdio.h> #define SQR(x)(x*x) int main() { int a, b=3; a = SQR(b+2); printf("%d\n", a); return 0; }
	A. 25 B. 11 C. Error D. Garbage value